Revision 433701

Fix two bugs in shells/fish

1) The build would fail when DOCS=off (PR 216167)
2) Tab completion doesn't work for "mount -t" (PR 216032)

PR:	216167
PR:	216032
Reported by:	Maxfx <maficccc@gmail.com>
Reported by:	David Guyot <david.guyot@europecamions-interactive.com>
Approved by:	brd (ports)