libtext-vimcolor-perl: FTBFS: test failures

Imported from Debian bug http://bugs.debian.org/720663:

Source: libtext-vimcolor-perl
Version: 0.11-2
Severity: serious
Justification: FTBFS
Tags: sid jessie

This package FTBGS in a clean sid chroot:

# Failed test 'shell should disable bash features with b:is_bash=undef'
# at t/15let.t line 47.
# got: '<syn:syntax xmlns:syn="http://ns.laxan.com/text-vimcolor/1"><syn:Statement>echo</syn:Stateme
nt><syn:Constant> </syn:Constant><syn:PreProc>$(</syn:PreProc><syn:Special>date</syn:Special><syn:PreProc>)</
syn:PreProc>
# </syn:syntax>
# '
# expected: '<syn:syntax xmlns:syn="http://ns.laxan.com/text-vimcolor/1"><syn:Statement>echo</syn:Stateme
nt><syn:Constant> </syn:Constant><syn:Error>$(</syn:Error><syn:Special>date</syn:Special><syn:Error>)</syn:Er
ror>
# </syn:syntax>
# '

# Failed test 'shell should disable bash features with vim_let(b:is_bash=>undef)'
# at t/15let.t line 79.
# got: '<syn:syntax xmlns:syn="http://ns.laxan.com/text-vimcolor/1"><syn:Statement>echo</syn:Stateme
nt><syn:Constant> </syn:Constant><syn:PreProc>$(</syn:PreProc><syn:Special>date</syn:Special><syn:PreProc>)</
syn:PreProc>
# </syn:syntax>
# '
# expected: '<syn:syntax xmlns:syn="http://ns.laxan.com/text-vimcolor/1"><syn:Statement>echo</syn:Stateme
nt><syn:Constant> </syn:Constant><syn:Error>$(</syn:Error><syn:Special>date</syn:Special><syn:Error>)</syn:Er
ror>
# </syn:syntax>
# '

# Failed test 'disable bash features with vim_let(foo=>"bar", b:is_bash=>undef)'
# at t/15let.t line 89.
# got: '<syn:syntax xmlns:syn="http://ns.laxan.com/text-vimcolor/1"><syn:Statement>echo</syn:Stateme
nt><syn:Constant> </syn:Constant><syn:PreProc>$(</syn:PreProc><syn:Special>date</syn:Special><syn:PreProc>)</
syn:PreProc>
# </syn:syntax>
# '
# expected: '<syn:syntax xmlns:syn="http://ns.laxan.com/text-vimcolor/1"><syn:Statement>echo</syn:Stateme
nt><syn:Constant> </syn:Constant><syn:Error>$(</syn:Error><syn:Special>date</syn:Special><syn:Error>)</syn:Er
ror>
# </syn:syntax>
# '
# Looks like you failed 3 tests of 7.
t/15let.t .......
Dubious, test returned 3 (wstat 768, 0x300)
Failed 3/7 subtests

Cheers,
Dominic.