testsuite fails on hppa
According to https://buildd.debian.org/status/package.php?p=tor&suite=sid, 0.2.8.6 failed to build on hppa:
rend_cache/store_v2_desc_as_client:
FAIL ../src/test/test_rendcache.c:201: assert(ret OP_EQ -1): 0 vs -1
[store_v2_desc_as_client FAILED]