Upgrade File::Temp from version 0.2302 to 0.2303

(A formerly EXCLUDED test script has been removed from the CPAN distro.)
Update to ExtUtils::MakeMaker 6.79_01.

Only one change:

    * Remove MM_TEST_ROOT feature for VMS test support

This feature depended on test directories created on the fly being
in a predictable location at a predictable depth, but as of 6.78
they aren't anymore, which caused a significant number of test
failures on VMS.
perlebcdic: Make some examples simpler; wrap to 79 cols

Some of the examples in this pod are far more complicated than they need
be.  This commit fixes most of them, while wrapping verbatim lines to
fit in 79 columns.
Upgrade File::Temp from version 0.2303 to 0.2304
Upgrade CPAN::Meta from 2.132661 to 2.132830
Sort MANIFEST
Upgrade Test::Harness from version 3.28 to 3.29

This includes the blead CUSTOMIZATION of t/source.t.
Add to known_pod_issues.dat following Test-Harness upgrade

Beyond.pod now has the same NAME as Harness.pm which causes three failures
in podcheck.t. Have them skipped for now. I will raise a CPAN/RT ticket to
get this resolved upstream.
Remove non-existent English variable names from perlvar

$OLD_PERL_VERSION was never exported (it was added commented-out in Perl
5.6.0, when $PERL_VERSION became $^V).  $OFMT and $ARRAY_BASE were
commented out in Perl 5.000.
Run cd t;./perl -I../lib porting/podcheck.t --regen
podcheck.t: Make blead pass again

Blead is failing sometimes on podcheck.t.  I don't fully understand the
reasons, but it is some sort of race condition.

The base problem that is causing this race to show up is a bug in the
new version 3.29 of Test::Harness.  It includes 2 pods that have the
same name.  This creates problems for reading the documentation in an
html browser.  The software that creates the hyperlinks uses the pod
name to figure out what the linked-to document is.  It cannot figure out
which one to link to when multiple pods have the same name, as here, so
podcheck raises an error.  Test::Harness should change so that the pods
have different names.  It's like having two different Unix commands
named 'foobar'.  Which one should `man foobar` display, if it could only
display one?

I haven't figured out how to fix the race yet, so this commit just
ignores one of the conflicting files for now.  The race has something to
do with the fact that these are both cpan files which are not normally
examined for pod problems, and so the error for one of them is getting
suppressed; and which one of the two gets suppressed varies.

This bug in Test::Harness also manifested itself as showing up a broken
link.
Upgrade Scalar-List-Utils from version 1.32 to 1.33
Fix autouse test, failing since commit 52102bb4f9

Only running test_porting and the tests of the module upgraded clearly
isn't always enough :-/
perldelta - Fill in updated modules section
perldelta - Fill in testing section
perldelta - Fill in documentation section
perldelta - Fill in diagnostics section
perldelta - Wrap lines to 79 characters
perldelta - Fix typo
perldelta - Fill in selected bug fixes section