Run tests in debug mode, use fork's repo for upgraded
The test harness will suppress output unless an error occurs.
Upgrade testing was failing in forked repos CI because the
source repo was hard-coded. Use the CI environment to use
the fork's repo.
# 2021-07-25 Fix copy_file_to_location failures with ssh when suffix applied to file lacking an extension (tlhackque)(#686)
# 2021-07-27 Support ftps://, FTPS_OPTIONS, remove default --insecure parameter to ftpes. Report caller(s) of error_exit in debug and test modes (tlhackque)(#687)(2.39)
# 2021-07-30 Prefer API V2 when both offered (tlhackque) (#690) (2.40)
# 2021-07-30 Run tests with -d to catch intermittent failures, Use fork's repo for upgrade tests. (tlhackque) (#692) (2.41)