CodeChecker should be able to check for the rule about no string concatenation in lang files

[timhunt]

MDLSITE-2719 agreed that string concatenation should not be allowed in lang files. It should be possible to get phpcs to check this for us, and it is a mistake people make.

[stronk7]

So, basically, what you are proposing here is to look for any concat (.) operator in lang files and error if found?

Also, related, there was MDLSITE-2063.

Ciao :-)