git-number - exit with exit status of executed command
Pay porcelain dept: git status may or may not show the '#' prefix

The porcelain output change was introduced in
git.git@2556b9962e7c0353d562b7bf70eed11d8f29d0b0
git-number: Show errors via stderr
git-number: exit with proper child's exit value
git-number - bugfix "git number -c echo" ran git-id instead of echo