s/enviroment/environment/ both in the .c file and in all .po files that
already contain a translation for the string. The latter prevents
wrongly marking the translation as fuzzy.
A few internationalized format strings have only one %s in the default
while two strings are being passed. Change those defaults to have two
%s's, which means we also have to update the .po files to match. May as
well throw in the extra %s in the translated version while we're at it.
