Fix for ambiguous and broken disk formatting dialog

While trying to use a USB flash drive over OTG, the drive's FS somehow got
corrupted, so Android gave me a notification to re-format it. Okay, so then
a dialog pops up that doesn't specify what volume/device it will format, and
I incorrectly assumed it would be the USb drive. However this activity defaults
to the main internal memory for some reason, and wiped my data. Thank God for
them internets... (Dropbox)

PS3:  Fixed up a LOT of tabs and whitespaces, and cleaned up code
PS4:  Missed two whitespaces, lol

Change-Id: I5621dff3cfd12a173b0d793398cf729333f97263