Make sure only {exit, normal} is not catched when executing a hook

src/ejabberd_hooks.erl

@@ -379,7 +379,7 @@ safe_apply(Hook, Module, Function, Args) ->
        true ->
 		apply(Module, Function, Args)
 	end
-    catch E:R when E /= exit, R /= normal ->
+    catch E:R when E /= exit; R /= normal ->
 	    ?ERROR_MSG("Hook ~p crashed when running ~p:~p/~p:~n"
 		       "** Reason = ~p~n"
 		       "** Arguments = ~p",