program, and return nil
(vc-bzr-state): Gracefully handle missing "bzr" program, and return nil.
(vc-bzr-state): Look for path names relative to the repository
root after status keyword.
(vc-bzr-file-name-relative): New function.
(vc-bzr-admin-dirname): Reinstate, as other vc-bzr-admin-... paths
depend on it.
(vc-bzr-admin-dirname, ...-checkout-format-file)
(...-branch-format-file, ...-revhistory): Paths to some Bzr internal
files that we now parse directly for speed.
(vc-bzr-root-dir): Use `vc-bzr-admin-checkout-format-file' as witness.
(vc-bzr-registered): Only parse vc-bzr-admin-dirstate file if it exists.
(vc-bzr-state): "bzr status" successful only if exitcode is 0
(vc-bzr-root): Use `vc-bzr-shell-command'. Stderr may contain
Bzr warnings, so we must discard it.
(vc-bzr-workfile-version): Speedup counting lines from
`vc-bzr-admin-revhistory' file, but fallback to spawning "bzr revno"
if that file doesn't exist.
(vc-bzr-responsible-p): Use `vc-bzr-root' instead of
`vc-bzr-root-dir' for speed.
add `vc-bzr-admin-dirname' (not ".bzr"!) to `vc-directory-exclusion-list'
(vc-bzr-shell-command): New function.
Activate it with add-hook on buffer-save-hook.
(newline, newline-and-indent, do-auto-fill): Use advice instead of
redefining the function.
(tpu-set-scroll-margins): Activate the pieces of advice.
(window_min_size_1, size_window, Fdisplay_buffer)
(Fsplit_window, adjust_window_trailing_edge): Use it to avoid
windows without mode- or header-lines when window-min-height is
too small.
(size_window): Reset nodelete_p after testing it, following an
earlier note by Kim F. Storm.
(display_buffer): Do not set split_height_threshold to twice the
value of window_min_height to avoid changing the value of a
customizable variable. Rather explicitly check whether the
height of the window that shall be splitted is at least as large
as split_height_threshold.
(Fwindow_full_width_p): New defun.
(syms_of_window): Defsubr it.
(Fdisplay_buffer): Use NILP.
(Fset_window_scroll_bars): Likewise.
Make it more discriminating and more useful.
(vc-bzr-root-dir): Use new name.
(vc-bzr-registered): Use new name and look at the dirstate file to
determine if it's registered or not without running `bzr'.
