Should be harmless since empty strings are ignored in
radio_getRandomMessage, but it's still supposed to be in a form
that uses \n only as necessary; the trailing newline was a mistake.
Some of the text was too long to fit within the box it's supposed to, so
I made a modification to the translations (removing プラズマ from
プラズマコンデンサー etc) to make it fit. I also removed maruhiro-san's
attempt to align the numbers because it doesn't actually work in-game
(due to the font and/or method of handling whitespace).