database-mac: clean up /mnt/db after use
Leaving this unnecessary directory in place caused docker/for-mac#1379.
@@ -18,6 +18,7 @@ start() {
[ $? -ne 0 ] && rm -rf /Database && printf "Could not mount configuration database\n" 1>&2 && eend 1
cp -a /mnt/db/branch/master/ro/com.docker.driver.amd64-linux/* /Database
umount /mnt/db
+ rmdir /mnt/db
eend 0
}
