More error checking in `versioncontrol` module to turn mercurial-specific errors into sumatra `VersionControlError`s
More error checking in `versioncontrol` module to turn mercurial-specific errors into sumatra `VersionControlError`s

babsey/sumatra,babsey/sumatra,open-research/sumatra,apdavison/sumatra,babsey/sumatra,dpad/sumatra,open-research/sumatra,maxalbert/sumatra,maxalbert/sumatra,open-research/sumatra,open-research/sumatra,apdavison/sumatra,babsey/sumatra,apdavison/sumatra,dpad/sumatra,babsey/sumatra,dpad/sumatra,apdavison/sumatra,dpad/sumatra,dpad/sumatra,maxalbert/sumatra,maxalbert/sumatra,open-research/sumatra,maxalbert/sumatra,apdavison/sumatra