[MIRROR] Grammar fixes to atom descriptions (#3165)

* Grammar fixes to atom descriptions

* compile errors

code/game/gamemodes/changeling/powers/linglink.dm

@@ -1,6 +1,6 @@
 /obj/effect/proc_holder/changeling/linglink
 	name = "Hivemind Link"
-	desc = "Link your victim's mind into the hivemind for personal interrogation"
+	desc = "Link your victim's mind into the hivemind for personal interrogation."
 	chemical_cost = 0
 	dna_cost = 0
 	req_human = 1

code/game/gamemodes/changeling/powers/mutations.dm

@@ -257,7 +257,7 @@
 
 /obj/item/ammo_casing/magic/tentacle
 	name = "tentacle"
-	desc = "a tentacle."
+	desc = "A tentacle."
 	projectile_type = /obj/item/projectile/tentacle
 	caliber = "tentacle"
 	icon_state = "tentacle_end"

code/game/gamemodes/changeling/powers/tiny_prick.dm

@@ -1,6 +1,6 @@
 /obj/effect/proc_holder/changeling/sting
 	name = "Tiny Prick"
-	desc = "Stabby stabby"
+	desc = "Stabby stabby."
 	var/sting_icon = null
 
 /obj/effect/proc_holder/changeling/sting/Click()