[DRE-maint] Bug#903364: ruby-jira: FTBFS in buster/sid (dh_installdocs: Cannot find "README.rdoc")

[Santiago Vila]

Package: src:ruby-jira
Version: 1.4.3-1
Severity: serious
Tags: ftbfs

Dear maintainer:

I tried to build this package in buster but it failed:

--------------------------------------------------------------------------------
[...]
 debian/rules build-indep
dh build-indep --buildsystem=ruby --with ruby
   dh_update_autotools_config -i -O--buildsystem=ruby
   dh_auto_configure -i -O--buildsystem=ruby
	dh_ruby --configure
   dh_auto_build -i -O--buildsystem=ruby
	dh_ruby --build
   dh_ruby --build
   debian/rules override_dh_auto_test
make[1]: Entering directory '/<<PKGBUILDDIR>>'
rake jira:generate_public_cert
Executing 'openssl req -x509 -nodes -newkey rsa:1024 -sha1 -keyout rsakey.pem -out rsacert.pem'
Generating a 1024 bit RSA private key
.++++++

[... snipped ...]

  should search an issue with a jql query string and array expand
  should return meta data available for editing an issue
  provides direct accessors to the fields
  #respond_to?
    when decorated by SimpleDelegator
      responds to key
      does not raise an error
  relationships
    has the correct relationships

JIRA::Resource::ProjectFactory
  initializes correctly

JIRA::Resource::Project
  relationships
    has the correct relationships
  issues
    returns issues
    with changelog
      returns issues
  users
    pagination
      doesn't use pagination parameters by default
      accepts start_at option
      accepts max_results option
      accepts start_at and max_results options

JIRA::Resource::UserFactory
  #myself
    returns a JIRA::Resource::User with correct attrs

JIRA::Resource::Worklog
  relationships
    has the correct relationships

Finished in 0.09517 seconds (files took 0.54893 seconds to load)
183 examples, 0 failures


┌──────────────────────────────────────────────────────────────────────────────┐
│ dh_ruby --install finished                                                   │
└──────────────────────────────────────────────────────────────────────────────┘

   dh_installdocs -i -O--buildsystem=ruby
dh_installdocs: Cannot find (any matches for) "README.rdoc" (tried in .)

debian/rules:6: recipe for target 'binary-indep' failed
make: *** [binary-indep] Error 2
dpkg-buildpackage: error: fakeroot debian/rules binary-indep subprocess returned exit status 2
--------------------------------------------------------------------------------

The build was made with "dpkg-buildpackage -A" in my autobuilder.
Most probably, it also fails here in reproducible builds:

https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/ruby-jira.html

[ Note: There has been a recent change in debhelper behaviour, the current
  behaviour is the intended one. See Bug #903133 for details ].

Thanks.