Until now the hook only checked newly added symlinks. This patch is a
first draft of also checking the worktree and index for any dangling
symlinks after staging a deletion.
The whole thing probably breaks when file-names contain newlines and
maybe also a mix of quotes. I plan on making this more robust in the
future but see no urgency for it since this repository has pretty simple
filenames.
Julian Prein
7f83427749
