feat(dracut.sh): protect `push_host_devs` function

Check at least that the arguments are not an empty string.

diff --git a/dracut.sh b/dracut.sh
index 4cf5046d2213e90bd5d328cb94877f6de84126bd..5685a5ea0d2ef5707f24a4cf2c6afad13075533a 100755 (executable)
--- a/dracut.sh
+++ b/dracut.sh
@@ -305,6 +305,7 @@ long_version() {
 push_host_devs() {
     local _dev
     for _dev in "$@"; do
+        [[ -z $_dev ]] && continue
         [[ " ${host_devs[*]} " == *" $_dev "* ]] && return
         host_devs+=("$_dev")
     done