split -1 in should be accepted

Fixes uutils#5033

src/uu/split/src/split.rs

@@ -1,10 +1,10 @@
+// * This file is part of the uutils coreutils package.
+// *
 // * (c) Akira Hayakawa <[email protected]>
 // *
 // * For the full copyright and license information, please view the LICENSE
 // * file that was distributed with this source code.
-// *
 
-// * This file is part of the uutils coreutils package.
 // spell-checker:ignore nbbbb ncccc
 
 mod filenames;
@@ -13,8 +13,8 @@ mod platform;
 
 use crate::filenames::FilenameIterator;
 use crate::filenames::SuffixType;
-use clap::ArgAction;
 use clap::error::Result;
+use clap::ArgAction;
 use clap::{crate_version, parser::ValueSource, Arg, ArgMatches, Command};
 use std::env;
 use std::fmt;
@@ -406,9 +406,12 @@ impl Strategy {
  (true, false, false, false, false) => {
  get_and_parse(matches, OPT_LINES, Self::Lines, StrategyError::Lines)
  }
- (false, true, false, false, false) => {
- get_and_parse(matches, OPT_LINES_SHORTHAND, Self::Lines, StrategyError::Lines)
- }
+ (false, true, false, false, false) => get_and_parse(
+ matches,
+ OPT_LINES_SHORTHAND,
+ Self::Lines,
+ StrategyError::Lines,
+ ),
  (false, false, true, false, false) => {
  get_and_parse(matches, OPT_BYTES, Self::Bytes, StrategyError::Bytes)
  }