grml_chroot: fix broken mount argument handling

Commit b4a4893b0b6 broke behavior of the grml-chroot script, as it then
passed all mount options as single argument, which then fails:

| + all_options_='-t proc none'
| + mount '-t proc none' /mnt/proc
| mount: /mnt/proc: can't find in /etc/fstab.
| + mountit sysfs sys
| [...]

Convert mount options into an array, to properly work also with quotes.

diff --git a/usr_sbin/grml-chroot b/usr_sbin/grml-chroot
index 8fcdabf..b13b57e 100755 (executable)
--- a/usr_sbin/grml-chroot
+++ b/usr_sbin/grml-chroot
@@ -43,14 +43,14 @@ function mountit
     local dest_="$2"
     local options_="$3"
 
-    local all_options_=""
+    local all_options_=()
 
     if [[ $options_ == "--bind" ]]; then
-        all_options_="--bind $type_"
+        all_options_+=(--bind "$type_")
     else
-        all_options_="-t $type_ none"
+        all_options_+=(-t "$type_" none)
     fi
-    mount "$all_options_" "${DEST_}/$dest_" && storeMounts "$dest_"
+    mount "${all_options_[@]}" "${DEST_}/$dest_" && storeMounts "$dest_"
 }
 
 function umount_all