Bug#27597 mysqld-debug broken

 - "on" -> "restore" to avoid warning in MSVC when compiling with debug


mysys/my_init.c:
  Fix spelling error that cause MSVC to throw a warning
  when compiling with debug.
  Use "restore" instaed of "on" to turn runtime checks back on

mysys/my_init.c

@@ -286,7 +286,7 @@ int handle_rtc_failure(int err_type, const char *file, int line,
 
   return 0; /* Error is handled */
 }
-#pragma runtime_checks("", on)
+#pragma runtime_checks("", restore)
 #endif