remove a space from a comment wow thanks linter

atom/browser/browser_linux.cc

@@ -121,7 +121,7 @@ bool Browser::IsDefaultProtocolClient(const std::string& protocol,
   #endif
 }
 
-// Todo implement 
+// Todo implement
 bool Browser::RemoveAsDefaultProtocolClient(const std::string& protocol,
                                             mate::Arguments* args) {
   return false;