glslang/_service

<services>
	<service name="tar_scm" mode="disabled">
 		<param name="scm">git</param>
		<param name="url">https://github.com/KhronosGroup/glslang</param>
		<!-- minor part also in glslang/Include/revision.h (and sometimes out of date too) -->
		<param name="revision">9c3204a1fde09ba7b98b1779047bf8d3491244a5</param>
		<param name="parent-tag">e157435c1</param>
		<param name="versionformat">8.13.3727+git@TAG_OFFSET@</param>
	</service>
	<service name="recompress" mode="disabled">
		<param name="file">*.tar</param>
		<param name="compression">xz</param>
	</service>
	<service name="set_version" mode="disabled"/>
</services>