* Perl test scripts

In the following the raw .t output gives messages at the start of the
line, but Test::Harness ends up prefixing them with its progress
print.  The exact text of that prefix varies a little between
Test::Harness versions but is unmatched.

symbol: perl--Test

# Test 2 got: "123" (t-compilation-perl.t at line 6)

NOK 1# Test 1 got: "1234" (t/foo.t at line 46)

symbol: perl--Test-failed

The following from Test.pm module,

# Failed test 1 in foo.t at line 6
d-compilation-perl....NOK 1# Failed test 1 in d-compilation-perl.t at line 27
../devel/d-compilation-perl.t .. 1/1 # Failed test 1 in ../devel/d-compilation-perl.t at line 27

The following from Test::Builder, with or without a test name, and
even a multi-line test name (multi-line "name"s arise if details like
input data are included to identify what test is what),

#   Failed test in foo.t at line 5.

#   Failed test 'my name'
#   in foo.t at line 5.

#   Failed test 'my name
#   blah
#   '
#   in foo.t at line 5.