[Reproducible-builds] Bug#789832: FTBFS: t/unexpected-cases.t fails on amd64

[Chris West (Faux)]

Package: unburden-home-dir
Version: 0.3.3
Severity: serious
Tags: sid stretch
Justification: fails to build from source (but built successfully in the past)
User: reproducible-builds at lists.alioth.debian.org

Dear Maintainer,

The package's tests fail:

[..]
t/undo.t ................................... ok
t/unexpected-cases.t ....................... 
Dubious, test returned 1 (wstat 256, 0x100)
Failed 1/98 subtests 
t/version.t ................................ ok
t/xsession-d.t ............................. ok

Test Summary Report
-------------------
t/unexpected-cases.t                     (Wstat: 256 Tests: 98 Failed: 1)
  Failed test:  95
  Non-zero exit status: 1
Files=27, Tests=496,  7 wallclock secs ( 0.16 usr  0.01 sys +  5.14 cusr  0.78 csys =  6.09 CPU)
Result: FAIL
Makefile:9: recipe for target 'pureperltest' failed


-- System Information:
Debian Release: stretch/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 3.19.0-21-generic (SMP w/8 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)