#4524 LLControlVariable error

indra/llxml/llcontrol.cpp

@@ -157,6 +157,9 @@ LLControlVariable::LLControlVariable(const std::string& name, eControlType type,
 {
     if ((persist != PERSIST_NO) && mComment.empty())
     {
+        // File isn't actually missing, but something is wrong with it
+        // so the main point is to warn user to reinstall
+        LLError::LLUserWarningMsg::showMissingFiles();
         LL_ERRS() << "Must supply a comment for control " << mName << LL_ENDL;
     }
     //Push back versus setValue'ing here, since we don't want to call a signal yet