Fix potential command line overflow in hooks--update
In a repository with a large number of refs, the following command line
could easily overflow the command line size limitations
git-rev-list $newref $(git-rev-parse --not --all)
Fortunately, git-rev-list already has the means to cope with this
situation with the --stdin switch
git-rev-parse --not --all | git-rev-list --stdin $newref
Which is exactly what this patch does.
Signed-off-by: Andy Parkins <andyparkins@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>