[binutils-gdb] Document that the PATTERN argument to gdb_test is optional.

[Sandra Loosemore <sandra at sourceware dot org>]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=79fad5b803e22798bcb087066234a954d0ccdc60

commit 79fad5b803e22798bcb087066234a954d0ccdc60
Author: Sandra Loosemore <sandra@codesourcery.com>
Date:   Fri Dec 25 11:36:52 2015 -0800

    Document that the PATTERN argument to gdb_test is optional.
    
    2015-12-25  Sandra Loosemore  <sandra@codesourcery.com>
    
    	gdb/testsuite/
    	* lib/gdb.exp (gdb_test): Update comments to clarify that the
    	PATTERN argument is optional.

Diff:
---
 gdb/testsuite/ChangeLog   | 5 +++++
 gdb/testsuite/lib/gdb.exp | 4 +++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index eb355b9..3970b2e 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2015-12-25  Sandra Loosemore  <sandra@codesourcery.com>
+
+	* lib/gdb.exp (gdb_test): Update comments to clarify that the
+	PATTERN argument is optional.
+
 2015-12-24  Joel Brobecker  <brobecker@adacore.com>
 
 	* lib/ada.exp (target_compile_ada_from_dir): New function.
diff --git a/gdb/testsuite/lib/gdb.exp b/gdb/testsuite/lib/gdb.exp
index 765ac83..5488c29 100644
--- a/gdb/testsuite/lib/gdb.exp
+++ b/gdb/testsuite/lib/gdb.exp
@@ -959,7 +959,9 @@ proc gdb_test_multiple { command message user_code } {
 # COMMAND is the command to execute, send to GDB with send_gdb.  If
 #   this is the null string no command is sent.
 # PATTERN is the pattern to match for a PASS, and must NOT include
-#   the \r\n sequence immediately before the gdb prompt.
+#   the \r\n sequence immediately before the gdb prompt.  This argument
+#   may be omitted to just match the prompt, ignoring whatever output 
+#   precedes it.
 # MESSAGE is an optional message to be printed.  If this is
 #   omitted, then the pass/fail messages use the command string as the
 #   message.  (If this is the empty string, then sometimes we don't