[macports-base] branch release-2.6 updated (a0658268 -> a17a3983)

[Joshua Root]

Joshua Root (jmroot) pushed a change to branch release-2.6
in repository macports-base.

    from a0658268 auto*: bump config.guess to 2020-07-12 and config.sub to 2020-07-10
     new b59e0f66 rev-upgrade: arm64 is not runnable on i386
     new a17a3983 extend possible demotions in choose_supported_archs

The 2 revisions listed above as "new" are entirely new to this
repository and will be described in separate emails.  The revisions
listed as "add" were already present in the repository and have only
been added to this reference.


Summary of changes:
 src/macports1.0/macports.tcl  |  2 +-
 src/port1.0/portconfigure.tcl | 18 +++++++++++-------
 2 files changed, 12 insertions(+), 8 deletions(-)