The correct responses to a D and a T line in .git/objects/info/packs
are the same, so combine their case arms. In both cases we already
‘goto’ out of the switch so while at it, remove a redundant ‘break’
to avoid yet another line of code.
Signed-off-by: Ralf Thielow <ralf.thielow@googlemail.com> Reviewed-by: Jonathan Nieder <jrnieder <at> gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>