Update tooManyConfigsError error message to prevent duplication in error message

Author: GNL10

lib/cppcheck.cpp

@@ -1684,7 +1684,7 @@ void CppCheck::tooManyConfigsError(const std::string &file, const int numberOfCo
     msg << "Too many #ifdef configurations - cppcheck only checks " << mSettings.maxConfigs;
     if (numberOfConfigurations > mSettings.maxConfigs)
         msg << " of " << numberOfConfigurations << " configurations. Use --force to check all configurations.\n";
-    if (file.empty())
+    else if (file.empty())
         msg << " configurations. Use --force to check all configurations. For more details, use --enable=information.\n";
     msg << "The checking of the file will be interrupted because there are too many "
         "#ifdef configurations. Checking of all #ifdef configurations can be forced "