don't send % by itself to printf



git-svn-id: http://skia.googlecode.com/svn/trunk@6120 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gm/gmmain.cpp b/gm/gmmain.cpp
index 5ba3a80..1b94853 100644
--- a/gm/gmmain.cpp
+++ b/gm/gmmain.cpp
@@ -1086,7 +1086,7 @@
             if ((gmIndex % moduloCount) != moduloIndex) {
                 continue;
             }
-            moduloStr.printf("[%d % %d] ", gmIndex, moduloCount);
+            moduloStr.printf("[%d.%d] ", gmIndex, moduloCount);
         }
 
         const char* shortName = gm->shortName();