Merge topic 'find_package-report-CONFIGS-error'

b3f9fe4 find_package: print error if an invalid CONFIGS name is used

Source/cmFindPackageCommand.cxx

@@ -538,6 +538,7 @@ bool cmFindPackageCommand
         e << "given CONFIGS option followed by invalid file name \""
           << args[i] << "\".  The names given must be file names without "
           << "a path and with a \".cmake\" extension.";
+        this->SetError(e.str().c_str());
         return false;
         }
       this->Configs.push_back(args[i]);