* gnu/packages/video.scm (mkvtoolnix)[native-inputs]: Remove labels. [arguments]: Use gexps and ‘this-package-input’ & co. Change-Id: I12b6638cd78c8c957ac9856c0e19025f4941847e
* gnu/packages/video.scm (mkvtoolnix)[native-inputs]: Remove labels. [arguments]: Use gexps and ‘this-package-input’ & co. Change-Id: I12b6638cd78c8c957ac9856c0e19025f4941847e