Bug#797262: vim-addon-manager: FTBFS: expected true to respond to `true?` or perhaps you meant `be true` or `be_truthy`

[Chris West (Faux)]

Source: vim-addon-manager
Version: 0.5.3
Severity: serious
Justification: fails to build from source
Tags: sid stretch
User: reproducible-builds at lists.alioth.debian.org
Usertags: ftbfs
X-Debbugs-CC: reproducible-builds at lists.alioth.debian.org

Dear Maintainer,

The package fails to build:

┌──────────────────────────────────────────────────────────────────────────────┐
│ Run tests for ruby2.1 from debian/ruby-tests.rake                            │
└──────────────────────────────────────────────────────────────────────────────┘

RUBYLIB=/vim-addon-manager-0.5.3/debian/vim-addon-manager/usr/lib/ruby/vendor_ruby:. rake2.1 -f debian/ruby-tests.rake
/usr/bin/ruby2.1 -S rspec --color spec
......................F

Failures:

  1) Vim::AddonManager re-enables addons
     Failure/Error: File.exists?(override_file).should be_true
       expected true to respond to `true?` or perhaps you meant `be true` or `be_truthy`
     # ./spec/vim/addon_manager_spec.rb:46:in `block (2 levels) in <top (required)>'

...

Finished in 0.04571 seconds (files took 0.10379 seconds to load)
23 examples, 1 failure

Full build log:
https://reproducible.debian.net/rb-pkg/unstable/amd64/vim-addon-manager.html

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