tests: add setsockopt() output on Python 3
Python 3 appears to call setsockopt() where Python 2 did not.
Differential Revision: https://phab.mercurial-scm.org/D5652
# See http://EditorConfig.org for the specification
root = true
[*.py]
indent_size = 4
indent_style = space
trim_trailing_whitespace = true
[*.{c,h}]
indent_size = 8
indent_style = tab
trim_trailing_whitespace = true
[*.t]
indent_size = 2
indent_style = space
trim_trailing_whitespace = false