[PATCH] avoid false positives in trailing operator rule in check_GNU_style.sh

[Martin Sebor]

My recent change to check_GNU_style.sh (commit 1bbf98) introduces
false positives for declarations of functions with a pointer return
type.  For example, in the following, the asterisk in the "void *"
return type is incorrectly diagnosed as a trailing operator:
  -void
  -foo (void);
  +void *
  +foo (int);

The patch below avoids those false positive for file-scope and
namespace-scope functions.

Martin

index fbf6cb2..a7478f8 100755
--- a/contrib/check_GNU_style.sh
+++ b/contrib/check_GNU_style.sh
@@ -240,6 +240,7 @@ g 'There should be no space before closing 
parenthesis.' \
 g 'Braces should be on a separate line.' \
     '(\)|else)[[:blank:]]*{'

-# Does this apply to definition of aggregate objects?
-g 'Trailing operator.' \
+# Does this apply to definitions of aggregate objects?
+ag 'Trailing operator.' \
+  '^[1-9][0-9]*:\+[[:space:]]' \
   '(([^a-zA-Z_]\*)|([-%<=&|^?])|([^*]/)|([^:][+]))$'