Closes: #2206
Use pg_dumpall instead of pg_dump.
Test I did:
1. Install tt-rss and add a feed
2. Create a backup
3. On a fresh installation restore the backup from file
Signed-off-by: nbenedek <contact@nbenedek.me>
[jvalleroy: Add a comment about the limitation of this approach]
Signed-off-by: James Valleroy <jvalleroy@mailbox.org>
Reviewed-by: James Valleroy <jvalleroy@mailbox.org>