Change append to appendf for call sites with no format arguments.

Original CL: http://codereview.appspot.com/5685062/

Review URL: https://codereview.appspot.com/5686059

git-svn-id: http://skia.googlecode.com/svn/trunk@3225 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/utils/SkDumpCanvas.cpp b/src/utils/SkDumpCanvas.cpp
index db62498..c9b4a95 100644
--- a/src/utils/SkDumpCanvas.cpp
+++ b/src/utils/SkDumpCanvas.cpp
@@ -49,7 +49,7 @@
                              pts[2].fX, pts[2].fY, pts[3].fX, pts[3].fY);
                 break;
             case SkPath::kClose_Verb:
-                str->appendf("X");
+                str->append("X");
                 break;
             case SkPath::kDone_Verb:
                 return;