Fixes some M << to to_chat references.

code/modules/mob/living/silicon/robot/dogborg/dog_modules_yw.dm

@@ -45,6 +45,6 @@
 		icontype = options[choice]
 		var/active_sound = 'sound/effects/bubbles.ogg'
 		playsound(src.loc, "[active_sound]", 100, 0, 4)
-		M << "Your Tank now displays [choice]. Drink up and enjoy!"
+		to_chat(M, "Your Tank now displays [choice]. Drink up and enjoy!")
 		updateicon()
 		return 1

code/modules/power/power.dm

@@ -312,7 +312,7 @@
 //Phorochemistry DM: Allows chemicalresistant shocking -Radiantflash
 		for(var/datum/reagent/phororeagent/R in M.reagents.reagent_list)
 			if(R.id == "fulguracin")
-				M << "<span class='notice'>Your hairs stand up, but you resist the shock for the most part</span>"
+				to_chat(M, "<span class='notice'>Your hairs stand up, but you resist the shock for the most part</span>")
 				return 0 //no shock for you
 
 	//Checks again. If we are still here subject will be shocked, trigger standard 20 tick warning

code/modules/reagents/kelshark.dm

@@ -1,6 +1,5 @@
 datum
 	reagent
-// Shamelessly ripped from Y.W., with large changes. -Carl
 		benzilate
 			name = "Odd Goo"
 			id = "benzilate"
@@ -22,11 +21,11 @@ datum
 					switch(data["count"])
 						if(1 to 30)
 							if(prob(9)) M.emote("me",1,"blushes")
-							if(prob(9)) M << "<span class='warning'>You feel so needy..</span>"
+							if(prob(9)) to_chat(M, "<span class='warning'>You feel so needy..</span>")
 						if (30 to INFINITY)
 							if(prob(3)) M.emote("me",1,"blushes")
 							if(prob(5)) M.say("!moans out lewdly!")
-							if(prob(9)) M << "<span class='warning'>You can't help but want to touch yourself then and now!</span>"
+							if(prob(9)) to_chat(M, "<span class='warning'>You can't help but want to touch yourself then and now!</span>")
 					data["count"]++
 				holder.remove_reagent(src.id, 0.2)
 				//..()

code/modules/vore/fluffstuff/MadokaSpear.dm

@@ -42,7 +42,7 @@
 /obj/item/weapon/oldtwohanded/mob_can_equip(M as mob, slot)
 	//Cannot equip wielded items.
 	if(wielded)
-		M << "<span class='warning'>Unwield the [initial(name)] first!</span>"
+		to_chat(M, "<span class='warning'>Unwield the [initial(name)] first!</span>")
 		return 0
 
 	return ..()