mkinitcpio: check return of cd before listing hooks

$ mkinitcpio -L
==> Available hooks
/usr/bin/mkinitcpio: line 173: cd: /lib/initcpio/install: No such file or directory

sort and dedupe as well, since we deal with a hierarchy which may (for
some horrible reason) contain duplicates.

Signed-off-by: Dave Reisner <dreisner@archlinux.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/mkinitcpio b/mkinitcpio
index 1281c0b..fb1db85 100755
--- a/mkinitcpio
+++ b/mkinitcpio
@@ -173,8 +173,8 @@ while :; do
         -L|--listhooks)
             msg "Available hooks"
             for dir in "${INSTDIR[@]}"; do
-                ( cd "$dir" >/dev/null; printf '   %s\n' * )
-            done | column -c$(tput cols)
+                ( cd "$dir" &>/dev/null && printf '   %s\n' * )
+            done | sort -u | column -c$(tput cols)
             exit 0 ;;
         -M|--automods)
             SHOW_AUTOMODS=1 ;;