http://sourceware.org/ml/gdb-patches/2011-01/msg00460.html

Index: gdb-7.2/gdb/linespec.c
===================================================================
--- gdb-7.2.orig/gdb/linespec.c	2011-02-03 22:59:46.000000000 +0100
+++ gdb-7.2/gdb/linespec.c	2011-02-03 23:03:28.000000000 +0100
@@ -1230,7 +1230,10 @@ decode_compound (char **argptr, int funf
     {
       char *end = skip_quoted (saved_arg);
       memmove (saved_arg, saved_arg + 1, end - saved_arg);
-      memmove (end - 2, end, strlen (saved_arg) + 1);
+      if (&end[-2] >= saved_arg && end[-2] == '\'')
+	memmove (end - 2, end, strlen (end) + 1);
+      else
+	memmove (end - 1, end, strlen (end) + 1);
     }
       
   /* First check for "global" namespace specification, of the form