Fix for survivor hostility message. (#5828)

# About the pull request

Followup to #4628. That PR added the message telling CLF survivors that
they are hostile, but it is based on the hostility of the entire
survivor job, which is only toggled by the nightmare landmarks that make
all the survivors hostile. It repeatedly gets CLF survivors in regular
rounds confused when they get the nonhostile version - thus, a fix with
an added reminder that they should not be shooting the resident
guard/director/whomever.

# Explain why it's good for the game

Is fix.

# Changelog

:cl:
fix: CLF survivors no longer incorrectly get told that they are not
hostile to marines.
/:cl:

code/game/jobs/job/civilians/other/survivors.dm

@@ -85,6 +85,8 @@
 
 	if(hostile)
 		to_chat(survivor, SPAN_HIGHDANGER("You are HOSTILE to the USCM!"))
+	else if(survivor.faction == FACTION_CLF)
+		to_chat(survivor, SPAN_HIGHDANGER("You are HOSTILE to the USCM, but NOT to other survivors!"))
 	else
 		to_chat(survivor, SPAN_XENOHIGHDANGER("You are NON-HOSTILE to the USCM!"))