Trouble fixing temp file issue with parallel testing

["Jerry D. Hedden" <jdhedden@cpan.org>]

'make test' on blead today gave me the following failure:

lib/charnames.................................................Could not open
tmp0001: Permission denied at ../lib/charnames.t line 289, <DATA> line 1.

It seems that lib/charnames.t, lib/strict.t and lib/subs.t
try to use temp files with names starting at 'tmp0000'.  The
above error would seem to have occurred with a collision
during parallel testing.

I figured the easiest way to fix this would be to 'require
test.pl' and use its new tempfile() function.  This works
fine for lib/charnames.t which already did require test.pl.

When I tried similar changes to other two files, I got
failures like this:

    > ./perl.exe -Ilib lib/strict.t
    1..116
    ok 1
    PROG:

    # strict refs - error
    use strict ;
    my $fred ;
    my $a = ${"fred"} ;
    EXPECTED:
    Can't use string ("fred") as a SCALAR ref while "strict refs" in
use at - line 5.
    GOT:
    Can't use string ("fred") as a SCALAR ref while "strict refs" in
use at -B line 5.
    not ok 2

and so on...

The difference is
    ... in use at - line ...
vs
    ... in use at -B line ...

I can't figure out where that extra 'B' is coming from.

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Follow-Ups from:

"Jerry D. Hedden" <jdhedden@cpan.org>

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