fix for completing quoted filenames with show-all-if-ambiguous set; avoid signed int overflow in intrand32

doc/bash.1

@@ -10094,7 +10094,7 @@ arithmetic \fBfor\fP command, display the expanded value of
 .SM
 .BR PS4 ,
 followed by the command and its expanded arguments
-or associated word list.
+or associated word list, to standard error.
 .TP 8
 .B \-B
 The shell performs brace expansion (see

doc/bashref.texi

@@ -5455,9 +5455,9 @@ Print shell input lines as they are read.
 @item -x
 Print a trace of simple commands, @code{for} commands, @code{case}
 commands, @code{select} commands, and arithmetic @code{for} commands
-and their arguments or associated word lists after they are
-expanded and before they are executed.  The value of the @env{PS4}
-variable is expanded and the resultant value is printed before
+and their arguments or associated word lists to standard error
+after they are expanded and before they are executed.
+The shell prints the expanded value of the @env{PS4} variable before
 the command and its expanded arguments.
 
 @item -B