Improve translators' comment for "Screenshot from %s"
This is currently saying
#. translators: this is the name of the file that gets made up
#. * with the screenshot
without explaining what the %s is going to get substituted for.
Translation may differ depending on what comes next.
The translation comment for " Screencast from %d %t.webm" is better from that perspective (even if it seems to be missing a verb):
#. Translators: this is a filename used for screencast
#. * recording, where "%d" and "%t" date and time, e.g.
#. * "Screencast from 07-17-2013 10:00:46 PM.webm
I would change the initial comment to something like
#. Translators: this is a filename used for screencast
#. * recording, where "%d" and "%t" date and time, e.g.
#. * "Screenshot from 07-17-2013 22-30-24"