RFC-44: Use git-chglog (#44) * proposal: Use git-chglog Signed-off-by: Xuanwo <github@xuanwo.io> * Assign number Signed-off-by: Xuanwo <github@xuanwo.io> * Add comment Signed-off-by: Xuanwo <github@xuanwo.io> * Update RFC PR Signed-off-by: Xuanwo <github@xuanwo.io>