go-yaml/yaml — pull request #43 by riobard (2014-10-10 17:27:53+00:00)
Title: Bugfix: quote strings containing colon-space

Unquoted strings containging ": " (colon-space) will confuse parsers due
to the ambiguity of inling mapping. See
http://www.yaml.org/YAML_for_ruby.html#indicators_in_strings for detail.