fix warnings from windows



git-svn-id: http://skia.googlecode.com/svn/trunk@869 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/utils/SkParsePath.cpp b/src/utils/SkParsePath.cpp
index 6b3afca..e08e84c 100644
--- a/src/utils/SkParsePath.cpp
+++ b/src/utils/SkParsePath.cpp
@@ -184,7 +184,7 @@
 #ifdef SK_SCALAR_IS_FLOAT
     char buffer[64];
 #ifdef SK_BUILD_FOR_WIN32
-	int len = sprintf(buffer, "%g", value);
+	int len = _snprintf(buffer, sizeof(buffer), "%g", value);
 #else
     int len = snprintf(buffer, sizeof(buffer), "%g", value);
 #endif