free later, fix tests/yaml_emit_005.phpt failure
free later, fix tests/yaml_emit_005.phpt failure

php/pecl-file_formats-yaml,php/pecl-file_formats-yaml,bd808/pecl-file_formats-yaml,php/pecl-file_formats-yaml,bd808/pecl-file_formats-yaml,php/pecl-file_formats-yaml,bd808/pecl-file_formats-yaml,bd808/pecl-file_formats-yaml