quilt.el: Fix quilt-editable when QUILT_PATCHES_PREFIX is set

This patch fixes a bug in quilt-editable: if QUILT_PATCHES_PREFIX is
set, quilt-editable will always return nil, even if the file being
edited is part of the topmost patch.

If QUILT_PATCHES_PREFIX is set, then 'quilt top' prints the patch name
as a relative path to the patch. Since in quilt-editable we're running
'quilt top' from the top level directory, the printed patch path is in
the form $QUILT_PATCHES/patch-name.

Later on, we're looking for a cached version of the file that we're
editing in .pc/. The patch directories are stored directly under .pc/,
rather than .pc/$QUILT_PATCHES/, so we must remove the $QUILT_PATCHES/
prefix from the patch path.

Signed-off-by: Ondřej Lysoněk <olysonek@redhat.com>
Signed-off-by: Jean Delvare <jdelvare@suse.de>

0 files changed, 0 insertions, 0 deletions