[DRE-maint] Bug#903072: ruby-coveralls FTBFS: update Build-Depends: ruby-ronn -> ronn

[Helmut Grohne]

Source: ruby-coveralls
Version: 0.8.21-1
Severity: serious

Since ronn got split out of ruby-ronn, ruby-coveralls fails to build
from source. It was not possible to have ruby-ronn temporarily depend on
ronn, because that would have created a dependency cycle. Please update
Build-Depends and replace ruby-ronn with ronn as ruby-coveralls uses the
command line tool.

Helmut