Log Message:
ruby-nokogiri: update to 1.10.4.

Upstream changelog:
 https://github.com/sparklemotion/nokogiri/blob/v1.10.4/CHANGELOG.md

# 1.10.4 / 2019-08-07

### Security

#### Address CVE-2019-5477 (#1915)

A command injection vulnerability in Nokogiri v1.10.3 and earlier allows
commands to be executed in a subprocess by Ruby's `Kernel.open` method.
Processes are vulnerable only if the undocumented method
`Nokogiri::CSS::Tokenizer#load_file` is being passed untrusted user input.

This vulnerability appears in code generated by the Rexical gem
versions v1.0.6 and earlier. Rexical is used by Nokogiri to generate
lexical scanner code for parsing CSS queries. The underlying
vulnerability was addressed in Rexical v1.0.7 and Nokogiri upgraded
to this version of Rexical in Nokogiri v1.10.4.

This CVE's public notice is
https://github.com/sparklemotion/nokogiri/issues/1915