Making Changes to Main Page Tags

To make changes to main page meta tags, I have seen two different suggestions.

includes/languages/english/custom/meta_tags.php

includes/modules/custom/meta_tags.php.

I had always used the former, but decided to change one word in the latter to see if it affected my site and it did make the change.

Now I am curious which is the best one to use.

Thanks!

traytray:

To make changes to main page meta tags, I have seen two different suggestions.

includes/languages/english/custom/meta_tags.php

includes/modules/custom/meta_tags.php.

I had always used the former, but decided to change one word in the latter to see if it affected my site and it did make the change.

Now I am curious which is the best one to use.

Thanks!
I'd vote editing the language file whenever possible (less prone to errors and supports multilingual sites)... Falling back to editing the "module / controller" code only when absolutely necessary... But just my opinion.