Fix kdesudo hang when no arguments are provided

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/kdesudo@1248417 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

kdesudo/main.cpp

@@ -93,6 +93,10 @@ int main(int argc, char **argv)
 			executable = commandlist[0];
 		}
 	}
+	else {
+		kdError() << I18N_NOOP("You must provide the name of the executable you want to run as an argument to kdesudo") << endl;
+		exit(1);
+	}
 
 	/* We have to make sure the executable is only the binary name */
 	executableList = TQStringList::split(" ", executable);