Get rid of multibyte prefix to tmpdir

merge revision(s) 856a970:

	Get rid of multibyte prefix to tmpdir

	---
	 test/ruby/test_require.rb | 12 ++++++------
	 1 file changed, 6 insertions(+), 6 deletions(-)

add tag v2_6_7

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/tags/v2_6_7@67941 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

add tag v2_5_9

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/tags/v2_5_9@67939 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

Disable DTrace in FreeBSD (ruby#3999)

The latest ruby cannot compile with FreeBSD Dtrace enabled.

gen-release-note.rb: Avoid to depend release metadata

Because it doesn't have metadata when I edit draft.

irb: Removed unused variables

[DOC] Fixed RDoc directives [ci skip]

merge revision(s) 0168094,cdef17096c03099f17ecf0af51f43faa0944f96d,b7…

…d86e330c76b4f9615511307e1c40f4f2937c83:

	Use libSystem.dylib instead of libm.dylib and libc.dylib

	  Because macOS 11.0(Big Sur) was removed libc and libm from `/usr/lib`.

	libSystem.dylib is also symlink. Use libSystem.B.dylib

	Workaroud for macOS Big Sur(11.0)

freeze all Range objects.

Matz want to try to freeze all Range objects.
[Feature ruby#15504]