Comply with semantic versioning pre-release format

Example version: 0.8.0-dev.460+g81b343a16

From a semantic versioning perspective, development builds will now be
considered distinct from a tagged release. The number of commits added
since the last tag is included in the pre-release component.

Updates #6466
bbe2cca1aeJay Petacat committed on 12/29/2020, 9:17:08 PM· committed by Andrew Kelleyparent8078d8c
1 file changedLine totals unavailable