favor return over return _ (void return); newline/closing terminates

testbed/lexer/main.bro

@@ -44,7 +44,7 @@ _append func(tokens @mut std.ArrayList(Token), kind Kind, start, end usize) void
 		length = end - start,
 		kind = kind,
 	})
-	return _
+	return
 }
 
 lex func(source []u8, tokens @mut std.ArrayList(Token)) void ! mem.AllocError {
@@ -92,7 +92,7 @@ lex func(source []u8, tokens @mut std.ArrayList(Token)) void ! mem.AllocError {
 		}
 	}
 	try _append(tokens, .eof, cursor, cursor)
-	return _
+	return
 }
 
 _kind_name func(kind Kind) *c_char {