Log Message:
hub: Update net/hub to 2.5.0

pkgsrc changes:
 - Delete patch-github_editor.go, imported upstream
 - Adjust SUBST_SEDs commands for the current man page
 - Manually regen files/hub.1 man page

Changes:
2.5.0
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Features
 - Have ci-status also query Checks API

Fixes
 - Do not pass `--cmd' to vi editor to ensure compatibility with older vi
 - Simplify cherry-picking commits from pull request URLs
 - Allow single-character branches/tag names in hub compare
 - Fix hub compare for Enterprise when <USER> is specified
 - Support remote add -t BRANCH argument
 - Bash shell completion fixes for git 2.18
 - Documentation fixes