Appears this test was failing, and someone edited the expected test
output instead of fixing it. Well no longer!
Release Notes:
- N/A
Co-authored-by: Conrad <conrad@zed.dev>
Closes#16977
Release Notes:
- added current line as default sed range to match vim's behavior
- changed tests accordingly
This also simplifies `ReplaceCommand` implementation by changing
`Option<CommandRange>` to `CommandRange` .
