fix mem leak with local BASH_REMATCH

doc/bashref.info

@@ -2,9 +2,9 @@ This is bashref.info, produced by makeinfo version 6.8 from
 bashref.texi.
 
 This text is a brief description of the features that are present in the
-Bash shell (version 5.2, 17 May 2022).
+Bash shell (version 5.2, 3 June 2022).
 
-   This is Edition 5.2, last updated 17 May 2022, of 'The GNU Bash
+   This is Edition 5.2, last updated 3 June 2022, of 'The GNU Bash
 Reference Manual', for 'Bash', Version 5.2.
 
    Copyright (C) 1988-2022 Free Software Foundation, Inc.
@@ -27,10 +27,10 @@ Bash Features
 *************
 
 This text is a brief description of the features that are present in the
-Bash shell (version 5.2, 17 May 2022).  The Bash home page is
+Bash shell (version 5.2, 3 June 2022).  The Bash home page is
 <http://www.gnu.org/software/bash/>.
 
-   This is Edition 5.2, last updated 17 May 2022, of 'The GNU Bash
+   This is Edition 5.2, last updated 3 June 2022, of 'The GNU Bash
 Reference Manual', for 'Bash', Version 5.2.
 
    Bash contains features that appear in other popular shells, and some
@@ -1145,6 +1145,9 @@ File: bashref.info,  Node: Conditional Constructs,  Next: Command Grouping,  Pre
      is the portion of the string matching the Nth parenthesized
      subexpression.
 
+     Bash sets 'BASH_REMATCH' in the global scope; declaring it as a
+     local variable will lead to unexpected results.
+
      Expressions may be combined using the following operators, listed
      in decreasing order of precedence:
 
@@ -12530,114 +12533,114 @@ Node: Lists29272
 Node: Compound Commands31067
 Node: Looping Constructs32079
 Node: Conditional Constructs34574
-Node: Command Grouping48918
-Node: Coprocesses50396
-Node: GNU Parallel53059
-Node: Shell Functions53976
-Node: Shell Parameters61861
-Node: Positional Parameters66249
-Node: Special Parameters67151
-Node: Shell Expansions70365
-Node: Brace Expansion72492
-Node: Tilde Expansion75226
-Node: Shell Parameter Expansion77847
-Node: Command Substitution96198
-Node: Arithmetic Expansion97553
-Node: Process Substitution98521
-Node: Word Splitting99641
-Node: Filename Expansion101585
-Node: Pattern Matching104334
-Node: Quote Removal108991
-Node: Redirections109286
-Node: Executing Commands118946
-Node: Simple Command Expansion119616
-Node: Command Search and Execution121726
-Node: Command Execution Environment124104
-Node: Environment127139
-Node: Exit Status128802
-Node: Signals130586
-Node: Shell Scripts134035
-Node: Shell Builtin Commands137062
-Node: Bourne Shell Builtins139100
-Node: Bash Builtins160561
-Node: Modifying Shell Behavior191417
-Node: The Set Builtin191762
-Node: The Shopt Builtin202363
-Node: Special Builtins218275
-Node: Shell Variables219254
-Node: Bourne Shell Variables219691
-Node: Bash Variables221795
-Node: Bash Features254611
-Node: Invoking Bash255624
-Node: Bash Startup Files261637
-Node: Interactive Shells266768
-Node: What is an Interactive Shell?267178
-Node: Is this Shell Interactive?267827
-Node: Interactive Shell Behavior268642
-Node: Bash Conditional Expressions272271
-Node: Shell Arithmetic276913
-Node: Aliases279857
-Node: Arrays282470
-Node: The Directory Stack288861
-Node: Directory Stack Builtins289645
-Node: Controlling the Prompt293905
-Node: The Restricted Shell296870
-Node: Bash POSIX Mode299480
-Node: Shell Compatibility Mode311404
-Node: Job Control319433
-Node: Job Control Basics319893
-Node: Job Control Builtins324895
-Node: Job Control Variables330465
-Node: Command Line Editing331621
-Node: Introduction and Notation333292
-Node: Readline Interaction334915
-Node: Readline Bare Essentials336106
-Node: Readline Movement Commands337889
-Node: Readline Killing Commands338849
-Node: Readline Arguments340767
-Node: Searching341811
-Node: Readline Init File343997
-Node: Readline Init File Syntax345258
-Node: Conditional Init Constructs368457
-Node: Sample Init File372653
-Node: Bindable Readline Commands375777
-Node: Commands For Moving376981
-Node: Commands For History379032
-Node: Commands For Text384026
-Node: Commands For Killing387675
-Node: Numeric Arguments390708
-Node: Commands For Completion391847
-Node: Keyboard Macros396038
-Node: Miscellaneous Commands396725
-Node: Readline vi Mode402664
-Node: Programmable Completion403571
-Node: Programmable Completion Builtins411351
-Node: A Programmable Completion Example422046
-Node: Using History Interactively427293
-Node: Bash History Facilities427977
-Node: Bash History Builtins430982
-Node: History Interaction435990
-Node: Event Designators439610
-Node: Word Designators440964
-Node: Modifiers442724
-Node: Installing Bash444535
-Node: Basic Installation445672
-Node: Compilers and Options449394
-Node: Compiling For Multiple Architectures450135
-Node: Installation Names451828
-Node: Specifying the System Type453937
-Node: Sharing Defaults454653
-Node: Operation Controls455326
-Node: Optional Features456284
-Node: Reporting Bugs467502
-Node: Major Differences From The Bourne Shell468777
-Node: GNU Free Documentation License485627
-Node: Indexes510804
-Node: Builtin Index511258
-Node: Reserved Word Index518085
-Node: Variable Index520533
-Node: Function Index537307
-Node: Concept Index551091
+Node: Command Grouping49041
+Node: Coprocesses50519
+Node: GNU Parallel53182
+Node: Shell Functions54099
+Node: Shell Parameters61984
+Node: Positional Parameters66372
+Node: Special Parameters67274
+Node: Shell Expansions70488
+Node: Brace Expansion72615
+Node: Tilde Expansion75349
+Node: Shell Parameter Expansion77970
+Node: Command Substitution96321
+Node: Arithmetic Expansion97676
+Node: Process Substitution98644
+Node: Word Splitting99764
+Node: Filename Expansion101708
+Node: Pattern Matching104457
+Node: Quote Removal109114
+Node: Redirections109409
+Node: Executing Commands119069
+Node: Simple Command Expansion119739
+Node: Command Search and Execution121849
+Node: Command Execution Environment124227
+Node: Environment127262
+Node: Exit Status128925
+Node: Signals130709
+Node: Shell Scripts134158
+Node: Shell Builtin Commands137185
+Node: Bourne Shell Builtins139223
+Node: Bash Builtins160684
+Node: Modifying Shell Behavior191540
+Node: The Set Builtin191885
+Node: The Shopt Builtin202486
+Node: Special Builtins218398
+Node: Shell Variables219377
+Node: Bourne Shell Variables219814
+Node: Bash Variables221918
+Node: Bash Features254734
+Node: Invoking Bash255747
+Node: Bash Startup Files261760
+Node: Interactive Shells266891
+Node: What is an Interactive Shell?267301
+Node: Is this Shell Interactive?267950
+Node: Interactive Shell Behavior268765
+Node: Bash Conditional Expressions272394
+Node: Shell Arithmetic277036
+Node: Aliases279980
+Node: Arrays282593
+Node: The Directory Stack288984
+Node: Directory Stack Builtins289768
+Node: Controlling the Prompt294028
+Node: The Restricted Shell296993
+Node: Bash POSIX Mode299603
+Node: Shell Compatibility Mode311527
+Node: Job Control319556
+Node: Job Control Basics320016
+Node: Job Control Builtins325018
+Node: Job Control Variables330588
+Node: Command Line Editing331744
+Node: Introduction and Notation333415
+Node: Readline Interaction335038
+Node: Readline Bare Essentials336229
+Node: Readline Movement Commands338012
+Node: Readline Killing Commands338972
+Node: Readline Arguments340890
+Node: Searching341934
+Node: Readline Init File344120
+Node: Readline Init File Syntax345381
+Node: Conditional Init Constructs368580
+Node: Sample Init File372776
+Node: Bindable Readline Commands375900
+Node: Commands For Moving377104
+Node: Commands For History379155
+Node: Commands For Text384149
+Node: Commands For Killing387798
+Node: Numeric Arguments390831
+Node: Commands For Completion391970
+Node: Keyboard Macros396161
+Node: Miscellaneous Commands396848
+Node: Readline vi Mode402787
+Node: Programmable Completion403694
+Node: Programmable Completion Builtins411474
+Node: A Programmable Completion Example422169
+Node: Using History Interactively427416
+Node: Bash History Facilities428100
+Node: Bash History Builtins431105
+Node: History Interaction436113
+Node: Event Designators439733
+Node: Word Designators441087
+Node: Modifiers442847
+Node: Installing Bash444658
+Node: Basic Installation445795
+Node: Compilers and Options449517
+Node: Compiling For Multiple Architectures450258
+Node: Installation Names451951
+Node: Specifying the System Type454060
+Node: Sharing Defaults454776
+Node: Operation Controls455449
+Node: Optional Features456407
+Node: Reporting Bugs467625
+Node: Major Differences From The Bourne Shell468900
+Node: GNU Free Documentation License485750
+Node: Indexes510927
+Node: Builtin Index511381
+Node: Reserved Word Index518208
+Node: Variable Index520656
+Node: Function Index537430
+Node: Concept Index551214
 
 End Tag Table