When there are no matchers all tests are filtered out

[drmuey]

When this happens it looks like this:

1..0
skipped: (no reason given)

Test Summary Report
-------------------
t/foo.t (Wstat: 65280 Tests: 0 Failed: 0)
  Non-zero exit status: 255
Files=1, Tests=0,  1 wallclock secs ( 0.03 usr  0.01 sys +  0.15 cusr  0.03 csys =  0.22 CPU)
Result: FAIL

This patch makes it work:

--- /usr/local/cpanel/3rdparty/perl/532/lib/perl5/cpanel_lib/Test/Spec.pm.orig	2021-04-12 11:54:06.169488566 -0500
+++ /usr/local/cpanel/3rdparty/perl/532/lib/perl5/cpanel_lib/Test/Spec.pm	2021-04-12 11:54:40.216941063 -0500
@@ -147,7 +147,8 @@
 sub _pick_tests {
   my ($class,@matchers) = @_;
   my @tests = $class->tests;
-
+  return @tests if !@matchers;
+ 
   my $pattern = join("|", @matchers);
   @tests = grep { $_->name =~ /$pattern/i } @tests;
 

Still looking into why this happens for some test files and not others.