Avoid wait forever from t/pod/pod2usage2.t

[atoomic]

Fixes #10

[atoomic]

This is now showing some additional issues

#   Failed test 'Output test pod2usage with special perldoc case'
#   at t/pod/pod2usage2.t line 372.
#                   '#You need to install the perl-doc package to use this program.
# '
#     doesn't match '(?^s:^\s*$)'
# Got:
# #You need to install the perl-doc package to use this program.
# Looks like you failed 1 test of 42.
t/pod/pod2usage2.t .....

[marekro]

For the moment, I think it is OK to SKIP as implemented. I need to look into that in more detail, and simulate what happens without perldoc being available. pod2usage should be able to deal with both situations anyway (perldoc being there or not). 2nd order optimization :)

[atoomic]

@marekro note that this is more tricky than this, as perldoc binary can be available but is a fake one until the perl-doc package is installed on the ubuntu containers.
So not only you need to ensure that perldoc is available but also that the default output looks sane...