repo-add: don't break if delta package sources contain epoch

Our sed parser for xdelta3 headers will greedily match on ":" which
coincidentally is also the character we use to define a version with an
epoch.

While we are at it, simply use sed for the whole pipeline, rather than
using both grep and sed.

Fixes FS#61195

Signed-off-by: Eli Schwartz <eschwartz@archlinux.org>
Signed-off-by: Allan McRae <allan@archlinux.org>

0 files changed, 0 insertions, 0 deletions