Parse sage-spkg options in sage-spkg #19104
Description
Instead of parsing the options to sage -i both in src/bin/sage and in sage-spkg, parse them just in sage-spkg (without requiring a specific order).
Component: scripts
Author: Jeroen Demeyer
Branch/Commit: 4eb1aa8
Reviewer: Volker Braun
Issue created by migration from https://trac.sagemath.org/ticket/19104