7182040: volano29 limited by os resource on Linux - need better diagnostic message

Changed message to "unable to create native thread: possibly out of memory or process/resource limits reached"

Reviewed-by: dholmes, sla

hotspot/src/share/vm/runtime/os.cpp

@@ -362,7 +362,7 @@ void os::signal_init() {
       // exceptions anyway, check and abort if this fails.
       if (signal_thread == NULL || signal_thread->osthread() == NULL) {
         vm_exit_during_initialization("java.lang.OutOfMemoryError",
-                                      "unable to create new native thread");
+                                      os::native_thread_creation_failed_msg());
       }
 
       java_lang_Thread::set_thread(thread_oop(), signal_thread);