Command Line Timeshift Apparently Cannot Exclude Directories

[ganakee]

Describe the bug
Command line (on headless system) apparently cannot exclude directories.

To Reproduce
Steps to reproduce the behavior:

1. Install timeshift on a headless system.
2. Open terminal and use sudo timeshift --create --comments "OMV5-A" --tags M --snapshot-device /dev/sdc1 --filter="/srv/dev" or sudo timeshift --create --comments "OMV5-A" --tags M --snapshot-device /dev/sdc1 --exclude="/srv/dev"
   to exclude certain directories from the timeshift snapshot.
3. Error message: E: Invalid command line arguments: --filter=/srv/dev*

Expected behavior
Command line timeshift should apply the specified exclude/filter to exclude directories.

Screenshots
If applicable, add screenshots to help explain your problem.

System:

• Linux Distribution Name and Version: POP OS 22.04

• Desktop POP OS (GNOME)

• Application Version

• timeshift:
  Installed: 19.01+ds-2+deb10u1
  Candidate: 19.01+ds-2+deb10u1
  Version table:
  20.11.1-1~bpo10+1 100
  100 http://httpredir.debian.org/debian buster-backports/main amd64 Packages
  *** 19.01+ds-2+deb10u1 500
  500 http://deb.debian.org/debian buster/main amd64 Packages
  100 /var/lib/dpkg/status