Merge pull request #7057 from Citadel-Station-13/upstream-merge-38396

[MIRROR] Adds logging for sleeper chem injections

code/game/machinery/Sleeper.dm

@@ -170,7 +170,7 @@
 				return
 			if(mob_occupant.health < min_health && chem != "epinephrine")
 				return
-			if(inject_chem(chem))
+			if(inject_chem(chem, usr))
 				. = TRUE
 				if(scrambled_chems && prob(5))
 					to_chat(usr, "<span class='warning'>Chem System Re-route detected, results may not be as expected!</span>")
@@ -179,9 +179,11 @@
 	scramble_chem_buttons()
 	to_chat(user, "<span class='warning'>You scramble the sleeper's user interface!</span>")
 
-/obj/machinery/sleeper/proc/inject_chem(chem)
+/obj/machinery/sleeper/proc/inject_chem(chem, mob/user)
 	if((chem in available_chems) && chem_allowed(chem))
 		occupant.reagents.add_reagent(chem_buttons[chem], 10) //emag effect kicks in here so that the "intended" chem is used for all checks, for extra FUUU
+		if(user)
+			add_logs(user, occupant, "injected [chem] into", additional = "via [src]")
 		return TRUE
 
 /obj/machinery/sleeper/proc/chem_allowed(chem)