Fix various things not returning an initialize hint (#39843)

* Fix RCDs not returning an initialize hint

* Add Initialize hints to cult blade and telecomms allinone

code/game/machinery/telecomms/machines/allinone.dm

@@ -17,7 +17,7 @@
 	flags_1 = NODECONSTRUCT_1
 
 /obj/machinery/telecomms/allinone/Initialize()
-	..()
+	. = ..()
 	if (intercept)
 		freq_listening = list(FREQ_SYNDICATE)
 

code/game/objects/items/RCD.dm

@@ -406,7 +406,7 @@ RLD
 		add_overlay("[icon_state]_charge[ratio]")
 
 /obj/item/construction/rcd/Initialize()
-	..()
+	. = ..()
 	update_icon()
 
 /obj/item/construction/rcd/borg

code/modules/antagonists/cult/cult_items.dm

@@ -23,7 +23,7 @@
 	actions_types = list(/datum/action/item_action/cult_dagger)
 
 /obj/item/melee/cultblade/dagger/Initialize()
-	..()
+	. = ..()
 	var/image/I = image(icon = 'icons/effects/blood.dmi' , icon_state = null, loc = src)
 	I.override = TRUE
 	add_alt_appearance(/datum/atom_hud/alternate_appearance/basic/silicons, "cult_dagger", I)