epan_init(): make 'status' volatile (to avoid might-be-clobbered warnings).

Change-Id: Ic0f1c99a530089f21b08337379a5a0bc7f566b9c
Reviewed-on: https://code.wireshark.org/review/11352
Reviewed-by: Jeff Morriss <jeff.morriss.ws@gmail.com>

epan/epan.c

@@ -97,7 +97,7 @@ epan_init(void (*register_all_protocols_func)(register_cb cb, gpointer client_da
 	  register_cb cb,
 	  gpointer client_data)
 {
-	gboolean status = TRUE;
+	volatile gboolean status = TRUE;
 
 	/* initialize memory allocation subsystem */
 	wmem_init();