repoman: clean up style in a lot of places

Shouldn't be any functional changes in here.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
ebuild: delete useless indent

Should be no functional change here.  The code was indented one too many
times, and the if check is pointless -- the for loop will already skip
if there are no elements in the list.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>