0.36 portfs.t test failure 'File names portability' .gitignore

[nieder]

With perl5.18.4 and perl5.34.1, this test fails:

t/portfs.t .............. 1/1 
#   Failed test 'File names portability'
#   at t/portfs.t line 9.
# These files does not respect the portable filename characters
# as defined by ANSI C and perlport:
#    .gitignore
#  
# Looks like you failed 1 test of 1.
t/portfs.t .............. Dubious, test returned 1 (wstat 256, 0x100)
Failed 1/1 subtests 

If I delete .gitignore in the 0.36 tarball and remove the entry from MANIFEST, then the tests all pass.

[nieder]

ETA: the 0.35 tarball did not have the .gitignore file.