initcpio: small improvements to the mkinitcpio hooks

arch/etc/initcpio/hooks/bcachefs

@@ -1,12 +1,13 @@
 #!/usr/bin/ash
 
 run_hook() {
-
-# check if $root needs unlocking
-if bcachefs unlock -c $root >/dev/null 2>&1; then
-    echo "Unlocking $root:"
-    while true; do
-        bcachefs unlock $root && break
+    local rootdev
+    if rootdev="$(resolve_device "$root")" && bcachefs unlock -c "$rootdev" >/dev/null 2>&1
+    then
+        echo "Unlocking $rootdev:"
+        while true
+        do
+            bcachefs unlock "$rootdev" && break
         done
     fi
 }

arch/etc/initcpio/install/bcachefs

@@ -1,11 +1,10 @@
 #!/bin/bash
 
 build() {
-             add_module `bcachefs`
-             add_binary "bcachefs"
+    add_module bcachefs
+    add_binary bcachefs
 
     add_runscript
-
 }
 
 help() {