Git supports passing the conflict marker length to merge drivers using
"%L". It would be useful if we also had a way to pass the marker length
to merge tools, since it would allow Git merge drivers to be used with
`jj resolve` in more cases. Without this variable, any merge tool that
parses or generates conflict markers could fail on files which require
conflict markers longer than 7 characters.
https://git-scm.com/docs/gitattributes#_defining_a_custom_merge_driver
Summary: In preparation for unifying all workspace dependencies across all
crates, let's go ahead and move the jj-cli crate into its own new directory.
This will also be a nicer and more uniform layout as we add new `jj-*` crates.
Signed-off-by: Austin Seipp <aseipp@pobox.com>
Change-Id: Icf94e7ae5f290dc8e181215727b38ada