Checking if your kit is complete...
Looks good
Writing Makefile for IO-WithHeader
cp lib/IO/WithHeader.pm blib/lib/IO/WithHeader.pm
cp lib/IO/WithHeader/RFC822.pm blib/lib/IO/WithHeader/RFC822.pm
cp lib/IO/WithHeader/YAML.pm blib/lib/IO/WithHeader/YAML.pm
Manifying blib/man3/IO::WithHeader::RFC822.3
Manifying blib/man3/IO::WithHeader.3
Manifying blib/man3/IO::WithHeader::YAML.3
PERL_DL_NONLAZY=1 /Users/cpanrun/pristine/5.8.7/bin/perl "-MExtUtils::Command::MM" "-e" "test_harness(0, 'blib/lib', 'blib/arch')" t/*.t
t/00basics........ok
t/01new-path......ok
t/02read..........ok
t/03readupdate....ok
t/04append........
#     Failed test (t/04append.t at line 39)
#          got: undef
#     expected: ''

#     Failed test (t/04append.t at line 39)
#          got: undef
#     expected: ''
# Looks like you failed 2 tests of 90.
dubious
	Test returned status 2 (wstat 512, 0x200)
DIED. FAILED tests 7, 52
	Failed 2/90 tests, 97.78% okay
t/05globread......ok
t/06globwrite.....ok
Failed Test  Stat Wstat Total Fail  Failed  List of Failed
-------------------------------------------------------------------------------
t/04append.t    2   512    90    2   2.22%  7 52
Failed 1/7 test scripts, 85.71% okay. 2/208 subtests failed, 99.04% okay.
make: *** [test_dynamic] Error 25