[3.14] gh-54732: Make argparse error caused by empty rows in option files explicit (GH-136795) (#136818)

gh-54732: Make argparse error caused by empty rows in option files explicit (GH-136795)
(cherry picked from commit 8ffc3ef01e83ffe629c6107082677de4d23974d5)

Co-authored-by: jdunter <2ve@mailbox.org>
Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>