[Commands] Cleanup #shownpcgloballoot and #showzonegloballoot Command. (#2141)

- Cleanup messages and logic.

zone/gm_commands/shownpcgloballoot.cpp

@@ -2,15 +2,22 @@
 
 void command_shownpcgloballoot(Client *c, const Seperator *sep)
 {
-	auto tar = c->GetTarget();
-
-	if (!tar || !tar->IsNPC()) {
+	if (!c->GetTarget() || !c->GetTarget()->IsNPC()) {
 		c->Message(Chat::White, "You must target an NPC to use this command.");
 		return;
 	}
 
-	auto npc = tar->CastToNPC();
-	c->Message(Chat::White, "GlobalLoot for %s (%d)", npc->GetName(), npc->GetNPCTypeID());
-	zone->ShowNPCGlobalLoot(c, npc);
+	auto target = c->GetTarget()->CastToNPC();
+
+	c->Message(
+		Chat::White,
+		fmt::format(
+			"Global loot for {} ({}).",
+			target->GetCleanName(),
+			target->GetNPCTypeID()
+		).c_str()
+	);
+
+	zone->ShowNPCGlobalLoot(c, target);
 }