Typo.

git-svn-id: http://subversion.jackaudio.org/jack/jack2/trunk/jackmp@4609 0c269be4-1314-0410-8aa9-9f06e86f4224

common/JackClient.cpp

@@ -640,7 +640,7 @@ int JackClient::PortRegister(const char* port_name, const char* port_type, unsig
 {
     // Check if port name is empty
     string port_name_str = string(port_name);
-    if (port_name_str.size() == 0)
+    if (port_name_str.size() == 0) {
         jack_error("port_name is empty");
         return 0; // Means failure here...
     }