detect_rootflags cutting input

[arlyon]

Hi there, thanks for putting this together! I am getting a syntax error when running the tool:

grub-btrfs/41_snapshots-btrfs

Lines 143 to 149 in 72a3dc0

	## Detect rootflags
	detect_rootflags()
	{
	local fstabflags=$(grep -oE '^\s*[^#][[:graph:]]+\s+/\s+btrfs\s+[[:graph:]]+' "${grub_btrfs_mount_point}/${snap_dir_name_trim}/etc/fstab" \
	| sed -E 's/^.*[[:space:]]([[:graph:]]+)$/\1/;s/,?subvol(id)?=[^,$]+//g;s/^,//')
	rootflags="rootflags=${fstabflags:+$fstabflags,}${GRUB_BTRFS_ROOTFLAGS:+$GRUB_BTRFS_ROOTFLAGS,}"
	}

        linux "/vmlinuz-0-rescue-01a9c4cabd6845548641e0d39e45051f" root=UUID=bb616308-e782-4419-8200-269af3026ed4 rd.luks.uuid=luks-bc0ec676-4e95-4373-bdc0-4257f833cad7 rhgb quiet  rd.live.overlay.overlayfs=1 rootflags=compress=zstd:1,x-systemd.devi>,subvol="@/.snapshots/1/snapshot"

The full set of rootflags for that device is compress=zstd:1,x-systemd.device-timeout=0 0 0

Not sure where the cutoff is happening as on my machine

grep -oE '^\s*[^#][[:graph:]]+\s+/\s+btrfs\s+[[:graph:]]+' /etc/fstab | sed -E 's/^.*[[:space:]]([[:graph:]]+)$/\1/;s/,?subvol(id)?=[^,$]+//g;s/^,//'

produces the correct(ish) value but misses the trailing 0

compress=zstd:1,x-systemd.device-timeout=0

[arlyon]

Nevermind it was my snapshot that had the broken fstab, however the additional 0s are still being trimmed