fast-import: use callbacks to parse some options

A previous commit started using the parse-option API to generate proper
`git fast-import -h` and `git fast-import --help-all` output.

Let's prepare for when we can use that API to also parse the options by
using OPT_CALLBACK for some options that require special processing of
their arguments.

A following commit will actually parse the options using these
callbacks.

Signed-off-by: Christian Couder <christian.couder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

0 files changed, 0 insertions, 0 deletions