MFH: r366171

- Fix link for SQL option

Approved by:	portmgr blanket
MFH: r366172

- Fix build by disabling warning which shoots on libdbi and is fatal due to -Werror

Approved by:	portmgr blanket
MFH: r366173

- Fix link for SQL option

Approved by:	portmgr blanket
Make sysutils/pstree operable in jailed environment.

(cherry picked from commit 0aa00da618ffa2bc5b4c4f8b89be22b9df2e9936)
Fixed replacement of $(PGBOUNCER_RUNDIR) in files/pgbouncer.in
Revert "Define and use "our_gid" variable."