Misc. code styling

Variable names, 1 to TRUE, and I also removed the bool returns since nothing's actually checking for them.

code/modules/dropships/attach_points/attach_point.dm

@@ -27,45 +27,45 @@
 
 /obj/effect/attach_point/attackby(obj/item/I, mob/user)
 	if(istype(I, /obj/item/powerloader_clamp))
-		var/obj/item/powerloader_clamp/PC = I
-		install_equipment(PC, user)
+		var/obj/item/powerloader_clamp/clamp = I
+		install_equipment(clamp, user)
 		return TRUE
 	return ..()
 
 /// Called when a real user with a powerloader attempts to install an equipment on the attach point
-/obj/effect/attach_point/proc/install_equipment(obj/item/powerloader_clamp/PC, mob/living/user)
-	if(!istype(PC.loaded, /obj/structure/dropship_equipment))
+/obj/effect/attach_point/proc/install_equipment(obj/item/powerloader_clamp/clamp, mob/living/user)
+	if(!istype(clamp.loaded, /obj/structure/dropship_equipment))
+		return
+	var/obj/structure/dropship_equipment/ds_equipment = clamp.loaded
+	if(!(base_category in ds_equipment.equip_categories))
+		to_chat(user, SPAN_WARNING("[ds_equipment] doesn't fit on [src]."))
 		return
-	var/obj/structure/dropship_equipment/SE = PC.loaded
-	if(!(base_category in SE.equip_categories))
-		to_chat(user, SPAN_WARNING("[SE] doesn't fit on [src]."))
-		return TRUE
 	if(installed_equipment)
-		return TRUE
-	playsound(loc, 'sound/machines/hydraulics_1.ogg', 40, 1)
+		return
+	playsound(loc, 'sound/machines/hydraulics_1.ogg', 40, TRUE)
 	var/point_loc = loc
 	if(!user || !do_after(user, (7 SECONDS) * user.get_skill_duration_multiplier(SKILL_ENGINEER), INTERRUPT_NO_NEEDHAND|BEHAVIOR_IMMOBILE, BUSY_ICON_BUILD))
-		return TRUE
+		return
 	if(loc != point_loc)//dropship flew away
-		return TRUE
-	if(installed_equipment || PC.loaded != SE)
-		return TRUE
-	to_chat(user, SPAN_NOTICE("You install [SE] on [src]."))
-	SE.forceMove(loc)
-	PC.loaded = null
-	playsound(loc, 'sound/machines/hydraulics_2.ogg', 40, 1)
-	PC.update_icon()
-	installed_equipment = SE
-	SE.ship_base = src
-	SE.plane = plane
+		return
+	if(installed_equipment || clamp.loaded != ds_equipment)
+		return
+	to_chat(user, SPAN_NOTICE("You install [ds_equipment] on [src]."))
+	ds_equipment.forceMove(loc)
+	clamp.loaded = null
+	playsound(loc, 'sound/machines/hydraulics_2.ogg', 40, TRUE)
+	clamp.update_icon()
+	installed_equipment = ds_equipment
+	ds_equipment.ship_base = src
+	ds_equipment.plane = plane
 
 	for(var/obj/docking_port/mobile/marine_dropship/shuttle in SSshuttle.mobile)
 		if(shuttle.id == ship_tag)
-			SE.linked_shuttle = shuttle
-			SEND_SIGNAL(shuttle, COMSIG_DROPSHIP_ADD_EQUIPMENT, SE)
+			ds_equipment.linked_shuttle = shuttle
+			SEND_SIGNAL(shuttle, COMSIG_DROPSHIP_ADD_EQUIPMENT, ds_equipment)
 			break
 
-	SE.update_equipment()
+	ds_equipment.update_equipment()
 
 /// Weapon specific attachment point
 /obj/effect/attach_point/weapon