Update site plug-in to restore Git commit metadata
Update site plug-in to restore Git commit metadata

See dita-ot/org.dita-ot.html#5.

Signed-off-by: Roger Sheen <a61a1add71dadc74037ae5e44ee30713db9a7451@infotexture.net>

infotexture/docs,dita-ot/docs,infotexture/docs