Do not print warning messages when there are no occurences.

2010-07-02  Sebastian Pop  <sebastian.pop@amd.com>

	* check_GNU_style.sh: Do not print warning messages when there are
	no occurences.

From-SVN: r164378

contrib/ChangeLog

+2010-07-02  Sebastian Pop  <sebastian.pop@amd.com>
+
+	* check_GNU_style.sh: Do not print warning messages when there are
+	no occurences.
+
 2010-09-13  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 
 	* gcc_update: Handle hg, too.

contrib/check_GNU_style.sh

@@ -84,8 +84,11 @@ col (){
 	| grep -v ':+++' \
 	| cut -f 2 -d '+' \
 	| awk '{ if (length ($0) > 80) print $0 }' \
-	> $tmp && printf "\n$msg\n"
-    cat $tmp
+	> $tmp
+    if [ -s $tmp ]; then
+	printf "\n$msg\n"
+	cat $tmp
+    fi
 }
 
 col 'Lines should not exceed 80 characters.' $*