rustfmt'd the codebase

src/builtin/shift.rs

@@ -14,12 +14,18 @@ pub fn shift(node: Node) -> ShResult<()> {
   };
 
   let mut argv = prepare_argv(argv)?;
-  if !argv.is_empty() { argv.remove(0); }
+  if !argv.is_empty() {
+    argv.remove(0);
+  }
   let mut argv = argv.into_iter();
 
   if let Some((arg, span)) = argv.next() {
     let Ok(count) = arg.parse::<usize>() else {
-      return Err(ShErr::at(ShErrKind::ExecFail, span, "Expected a number in shift args"));
+      return Err(ShErr::at(
+        ShErrKind::ExecFail,
+        span,
+        "Expected a number in shift args",
+      ));
     };
     for _ in 0..count {
       write_vars(|v| v.cur_scope_mut().fpop_arg());