mkinitramfs: Fix termination of gzip compression case

The gzip case for the compression misses its termination ";;".
shellcheck aborts with an error on this file:

```
In mkinitramfs line 145:
case "${compress}" in
^-- SC1009: The mentioned parser error was in this case expression.

In mkinitramfs line 146:
gzip)   [ -n "${SOURCE_DATE_EPOCH}" ] && compress="gzip -n"
^-- SC1073: Couldn't parse this case item.

In mkinitramfs line 147:
lz4)    compress="lz4 -9 -l" ;;
   ^-- SC1072:  Fix any mentioned problems and try again.
   ^-- SC1074: Did you forget the ;; after the previous case item?
```

Signed-off-by: Benjamin Drung <benjamin.drung@cloud.ionos.com>

0 files changed, 0 insertions, 0 deletions