What is ;T;N or ;T;T for in the language file?
By default all of the rows in the language file end with:
The first letter is only for internal purposes so that the software can calculate the percentage of translation.
if there are 3000 rows in the language file, and 300 of them are ending with ;T;N then the software based on that will determine the translation to be done for 10%. (300 / 3000 * 100)
The second letter means, whether it is a 'custom' translation or not. More exactly, if there is any row ending with: