Accept upstream-style tags without an epoch
Epochs are a packaging thing rather than an upstream thing, and version numbers should be unique even after removing the epoch (epochs are for ordering, not uniqueness), so we shouldn't require them in upstream tags. If the package is version 1:1.2.3, look for tags 1%1.2.3 and v1%1.2.3 (as we did before), plus 1.2.3 and v1.2.3 (new).
Signed-off-by: Simon McVittie smcv@collabora.com
