Set up the /usr/tests hierarchy.

This is a MFC of the following into stable/10:
- r257097 Set up the /usr/tests hierarchy.
- r257098 Add missing WITHOUTTESTS file.
- r257100 Add a tests(7) manual page.
- r257105 Disable WITHTESTS= for now.
- r257848 Fix buildworld when WITHTESTS is enabled.
- r257850 Subsume the functionality of MKATF into MKTESTS.
- r257851 Handle the removal of the test suite when WITHOUTTESTS=yes.
- r257852 Install category Kyuafiles from their category directories.
- r258232 Install BSD.tests.mtree when MKTESTS is yes.

Note that building with WITH_TESTS is still broken at this point (and
hence why WITHOUT_TESTS is the set as the default).  Subsequent pullups
will fix the remaining issues.

1 files changed, 1 insertions, 1 deletions

diff --git a/share/doc/Makefile b/share/doc/Makefile
index 1ec57e8..a4fe61d 100644
--- a/share/doc/Makefile
+++ b/share/doc/Makefile
@@ -9,7 +9,7 @@ SUBDIR=	${_IPv6} \
 	${_llvm} \
 	${_roffdocs}
 
-.if ${MK_ATF} != "no"
+.if ${MK_TESTS} != "no"
 _atf= atf
 .endif