Fix copy/paste documentation error.

Change-Id: I153a8fdb3644c7178895ce0cc6c1c3f6ce3c6876
diff --git a/runtime/utils.h b/runtime/utils.h
index cd04c3f..9a9f51a 100644
--- a/runtime/utils.h
+++ b/runtime/utils.h
@@ -333,7 +333,7 @@
 // Tests whether 's' starts with 'prefix'.
 bool StartsWith(const std::string& s, const char* prefix);
 
-// Tests whether 's' starts with 'suffix'.
+// Tests whether 's' ends with 'suffix'.
 bool EndsWith(const std::string& s, const char* suffix);
 
 // Used to implement PrettyClass, PrettyField, PrettyMethod, and PrettyTypeOf,