The ORIGIN patch has been modified in place, probably *wild guessing
sounds* by a server-side cgit update.
* gnu/packages/xorg.scm (xf86-video-voodoo)[source]: Use SEARCH-PATCHES.
* gnu/packages/patches/xf86-video-voodoo-pcitag.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.