mob: fix for say code "randomly" breaking

There was a runtiming check for mob.locs[1] in living/say, that would
fail if a mob was in bluespace.

Signed-off-by: Mloc-Argent <colmohici@gmail.com>
Merge pull request #4887 from Mloc/bs12-mprf2

mob: fix for say code "randomly" breaking