--- a/src/share/vm/runtime/thread.cpp	Wed May 28 12:07:21 2014 -0700
+++ b/src/share/vm/runtime/thread.cpp	Thu May 29 09:56:06 2014 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -111,6 +111,8 @@
 #include "runtime/rtmLocking.hpp"
 #endif
 
+PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC
+
 #ifdef DTRACE_ENABLED
 
 // Only bother with this argument setup if dtrace is available
@@ -4318,7 +4320,7 @@
 // Threads::print_on() is called at safepoint by VM_PrintThreads operation.
 void Threads::print_on(outputStream* st, bool print_stacks, bool internal_format, bool print_concurrent_locks) {
   char buf[32];
-  st->print_cr(os::local_time_string(buf, sizeof(buf)));
+  st->print_cr("%s", os::local_time_string(buf, sizeof(buf)));
 
   st->print_cr("Full thread dump %s (%s %s):",
                 Abstract_VM_Version::vm_name(),