Fix precedence error.

Flagged as a compiler warning. It appears that it was intended that the
conjuction not bind so tightly.

git-svn-id: http://skia.googlecode.com/svn/trunk@591 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/utils/SkOSFile.cpp b/src/utils/SkOSFile.cpp
index 47f43ba..982bc08 100644
--- a/src/utils/SkOSFile.cpp
+++ b/src/utils/SkOSFile.cpp
@@ -172,9 +172,8 @@
 {
     size_t  suffixLen = suffix.size();
     size_t  strLen = strlen(str);
-    
+
     return  strLen >= suffixLen &&
-            suffixLen == 0 ||
             memcmp(suffix.c_str(), str + strLen - suffixLen, suffixLen) == 0;
 }