pkgbump: Use @group support in gpy-impl >= 0.12

Signed-off-by: Michał Górny <[email protected]>

Author: mgorny

README.rst

@@ -101,6 +101,7 @@ only the build system files::
 pkgbump
 -------
 Dependencies: portage, gentoolkit (ekeyword), git, pkgcore
+Optional dependencies: gpyutils >= 0.12 (gpy-impl)
 
 Copies ebuild for a version bump, dropping keywords, updating Manifest
 and running pkgdiff-mg_ to compare archives.  Typical usage::

pkgbump

@@ -21,7 +21,7 @@ cp "${1}" "${2}"
 "${scriptdir}"/copybump "${2}"
 ekeyword ~all "${2}"
 if grep -q "^PYTHON_COMPAT" "${2}" && type -P gpy-impl &>/dev/null; then
-	gpy-impl "${2}" -python3_{8..9} || :
+	gpy-impl "${2}" -@dead || :
 fi
 # tell ebuilds we don't want everything
 export PKGBUMPING=${version}