Bug#877419: pandas FTBFS on !x86/ppc64el: test failures

[Graham Inggs]

Hi

I refreshed and re-enabled Andreas' mark_tests_working_on_intel.patch 
[1] which was disabled in 0.22.0-1.
I additionally marked test_sum_nanops_timedelta and 
test_timedelta_ops_with_missing_values with pytest.mark.intel which were 
failing at least on arm64.

To address a new failure on big-endian architectures, I added a patch 
[2] and forwarded it upstream.

I uploaded 0.22.0-3 including these changes, and as of this writing, 
builds have succeeded on s390x, ppc64el, amd64 and i386.

Regards
Graham


[1] 
https://salsa.debian.org/science-team/pandas/commit/2971b1a4336d54def88857853e24274503b9cf55
[2] 
https://salsa.debian.org/science-team/pandas/commit/27e71d47e891547e3e492b1e25494bf2b4504a49