We will fetch more data than needed with Git 1.8, but other than that...

vcsh: Always fast forward initial merge

Fix broken list-tracked-by -- list_tracked expects repository at $2

github: Closes richih/vcsh#168

Ignore `merge.ff = no` if set in .gitconfig.

t/300-add.t ........ "my" variable $output masks earlier declaration in
same scope at t/300-add.t line 32.

`--nocheck-order` is only supported by GNU `comm`, but it isn't
necessary anyway because we sort the inputs first.

only shows repositories with changes, which makes it suitable to be run
during login shell startup.

Needs more cowbell

Seems not a lot of people `make purge`...