Warn if empty line between parameter docs and class/define

[alexjfisher]

# @summary an example
#
# @param bar

class foo (
  $bar,
)
{
}

doesn't trigger a warning, but puppet-strings won't see the docs.

[ekohl]

Perhaps https://github.com/rodjek/puppet-lint/blob/master/lib/puppet-lint/plugins/check_documentation/documentation.rb should actually be modified to check for that. It now skips all whitespace

[alexjfisher]

That might be a better place for it.

[ekohl]

I opened rodjek/puppet-lint#931