our translation interface used to submit empty files for a while but no
longer does, so these can go

http://english.stackexchange.com/questions/117552/why-does-information-not-have-a-plural-form

Removed extraneous whitespace to eliminate errors reported by the
Squiz.WhiteSpace.SuperfluousWhitespace sniff.

Remove whitespace from end of lines to reduce the number of CodeSniffer
violations.