Support NetBSD in FilesystemResizeUnmounted task

Add support for resizing UFS file systems of NetBSD OSes

snf-image-helper/tasks/20FilesystemResizeUnmounted.in

@@ -36,7 +36,7 @@ if [ ! -b "$SNF_IMAGE_DEV" ]; then
     log_error "Device file:\`${SNF_IMAGE_DEV}' is not a block device"
 fi
 
-if [ "$SNF_IMAGE_PROPERTY_OSFAMILY" = openbsd ]; then
+if [[ "$SNF_IMAGE_PROPERTY_OSFAMILY" =~ ^(open|net)bsd$ ]]; then
     bsd_part="$(@scriptsdir@/disklabel.py --get-last-partition "$SNF_IMAGE_DEV")"
     if [ "$bsd_part" = "b" ]; then
         warn "Last partition is swap space. Resizing ommited"
@@ -52,11 +52,6 @@ if [ "$SNF_IMAGE_PROPERTY_OSFAMILY" = openbsd ]; then
     exit 0
 fi
 
-if [ "$SNF_IMAGE_PROPERTY_OSFAMILY" = netbsd ]; then
-    warn "File system resizing currently not supported for NetBSD"
-    exit 0
-fi
-
 if [ -z "$SNF_IMAGE_RESIZE_PART" ]; then
     warn "No partition chosen for resize"
     exit 0