Save backup files with extension .pacsave.n

Teach pacman to save backup files with extension .pacsave.n, where n is a
positive integer. The current backup file shall be saved as <name>.pacsave,
while existing .pacsave.n files will be renamed to <name>.pacsave.n+1

Example:
1. You have subversion installed in your local repo. /etc/conf.d/svnserve
   is a file to be backed up. It contains local modifications

2. You remove subversion from your repo. /etc/conf.d/svnserve is backed up as
   /etc/conf.d/svnserve.pacsave

2. You install subversion again

3. You edit /etc/conf.d/svnserve

4. You remove subversion. The existing /etc/conf.d/svnserve.pacsave is renamed
   to /etc/conf.d/svnserve.pacsave.1 and /etc/conf.d/svnserve is backed up as
   /etc/conf.d/svnserve.pacsave

Signed-off-by: Pang Yan Han <pangyanhan@gmail.com>

Rebased from original email and adjusted for util-common usage.
Signed-off-by: Florian Pritz <bluewind@xinu.at>

Signed-off-by: Allan McRae <allan@archlinux.org>

0 files changed, 0 insertions, 0 deletions