Update src/ibrowse_lb.erl

ets update counter throws exception when the corresponding process has already shutdown. Added line fee to L248

src/ibrowse_lb.erl

@@ -247,7 +247,8 @@ find_best_connection(Pid, Tid, Max_pipe) ->
                     find_best_connection(ets:next(Tid, Pid), Tid, Max_pipe);
                 _ ->
                     {ok, Pid}
-            end;        _ ->
+            end;
+_ ->
             find_best_connection(ets:next(Tid, Pid), Tid, Max_pipe)
     end.