WordPress translation calls for a [theme name].po file, in which are your key value mapping for your translations, such as:
#: ../single-con_book_reviews.php:197
msgid "Author: "
msgstr ""
However, putting the file and line number of every occurrence of the word “Author: ” is arduous and silly. Is it required? Or can I just use the saner:
msgid "Author: "
msgstr ""
OR, am I just missing something here?
See, the problem with putting the file & line number is it would discourage you from ever writing any new or removing any old code. If you add a line at the beginning of a 1200 line php file you’ve suddenly ruined all of your translation mappings. Surely these are more of just comments… right?
Its a comment and its not required. Its there mostly for historical reason, where it were more difficult to find out, where a specific string occurs. Additional this is usually (then and now) added automatically by a parser, that creates the translate-templates right from the source, and not manually by hand.