Three things from the review (#60), one of them a finding of my own that did not
survive measurement:
- The reported defect — additions never subtract `pacman -Qtdq`, so an orphan can
be emitted as a manifest line — is wrong. A package carries one install reason:
`-Qtdq` selects installed-as-dependency, additions come from `-Qqe`, so the sets
are disjoint (blankpad: 206 explicit, 3 orphans, none in common). A subtraction
would be dead code that looks like a guard, so the header now says why not to
add one. The packages page law was rewritten to the same effect.
- What the old test should have pinned: an implicit dependency installed AFTER
the baseline. Only `-Qqe` keeps it out of drift — mutate that query to `-Qq` and
the new test goes red (verified), where the old assertion passed no matter what.
- `--help` printed `set -euo pipefail` and the LC_ALL line as documentation: the
hardcoded sed range ran past the comment block. It now stops at the first line
of code, so the header can keep growing.
Refs #60
Frank
40b9725433