check_GNU_style.sh: Avoid false posivies in trailing operator checks.

From-SVN: r234965

contrib/ChangeLog

+2016-04-13  Martin Sebor  <msebor@redhat.com>
+
+	* check_GNU_style.sh: Avoid false posivies in trailing operator
+	checks.
+
 2016-03-07  Martin Sebor  <msebor@redhat.com>
 
 	* check_GNU_style.sh (color): New global variable.

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_]\*)|([-%<=&|^?])|([^*]/)|([^:][+]))$'