Commit: 9bffd88f6727 ("selftests/net: big_tcp: return xfail on slow machines")
	Fixes tag: Fixes: a19747c3b9b ("selftests: net: let big_tcp test cope with slow env")
	Has these problem(s):
		- SHA1 should be at least 12 digits long
		  Can be fixed by setting core.abbrev to 12 (or more) or (for git v2.11
		  or later) just making sure it is not set (or set to "auto").