commit bash-20170303 snapshot

doc/bash.1

@@ -5,12 +5,12 @@
 .\"	Case Western Reserve University
 .\"	chet.ramey@case.edu
 .\"
-.\"	Last Change: Thu Feb  9 15:46:36 EST 2017
+.\"	Last Change: Sat Mar  4 13:06:51 EST 2017
 .\"
 .\" bash_builtins, strip all but Built-Ins section
 .if \n(zZ=1 .ig zZ
 .if \n(zY=1 .ig zY
-.TH BASH 1 "2017 February 9" "GNU Bash 4.4"
+.TH BASH 1 "2017 March 4" "GNU Bash 4.4"
 .\"
 .\" There's some problem with having a `@'
 .\" in a tagged paragraph with the BSD man macros.
@@ -4566,6 +4566,14 @@ greater than, or greater than or equal to \fIarg2\fP, respectively.
 and
 .I arg2
 may be positive or negative integers.
+When used with the \fB[[\fP command,
+.I Arg1
+and
+.I Arg2
+are evaluated as arithmetic expressions  (see
+.SM
+.B "ARITHMETIC EVALUATION"
+above).
 .PD
 .SH "SIMPLE COMMAND EXPANSION"
 When a simple command is executed, the shell performs the following