Support duplicate object names in large archives (#14874)

Generalize the change from commit 39d0ade0 (Windows-GNU: Support
duplicate object names in large archives, 2014-04-14) to the default
archive rules.  These rules have used an incremental append approach
since commit v2.8.0~1856 (Build large archives incrementally,
2008-08-04).  Switch from "ar r" to "ar q" to be sure we always append
objects instead of replacing them.
Merge topic 'ar-no-replace' into next

e4218c87 Support duplicate object names in large archives (#14874)
Support duplicate object names in large archives (#14874)

Generalize the change from commit 39d0ade0 (Windows-GNU: Support
duplicate object names in large archives, 2014-04-14) to the default
archive rules.  These rules have used an incremental append approach
since commit v2.8.0~1856 (Build large archives incrementally,
2008-08-04).  Switch from "ar r" to "ar q" to be sure we always append
objects instead of replacing them.
Merge topic 'ar-no-replace' into next

1ec6485c Support duplicate object names in large archives (#14874)