Update pre-commit

readlink by itself here doesn't work properly if you have relative paths in your symlink.  I believe readlink -f will be better here.

Author: holtwilkins

pre-commit

@@ -7,7 +7,7 @@ RC=0
 subhook_root=$git_root/.git/hooks/commit_hooks
 
 hook_dir="$(dirname $0)"
-hook_symlink="$(readlink $0)"
+hook_symlink="$(readlink -f $0)"
 
 # Figure out where commit hooks are if pre-commit is setup as a symlink
 if [ ! -z "$hook_symlink" ]; then