docs(switch): correctly describe behavior of when check out target is omitted

Closes #1548

Author: claytonrcarter

git-branchless-opts/src/lib.rs

@@ -171,13 +171,11 @@ pub struct SwitchOptions {
     #[clap(action, short = 'd', long = "detach")]
     pub detach: bool,
 
-    /// The commit or branch to check out.
+    /// The commit or branch to check out. If not provided, defaults to the
+    /// current commit.
     ///
     /// If a revset is provided, it must evaluate to set with exactly 1 head.
     ///
-    /// If this is not provided, then interactive commit selection starts as
-    /// if `--interactive` were passed.
-    ///
     /// If this is provided and the `--interactive` flag is passed, this
     /// text is used to pre-fill the interactive commit selector.
     #[clap(value_parser)]