bin/get-pick-list: use --oneline=pretty instead of --oneline

--oneline shortens hashes, while --oneline=pretty doesn't, otherwise
they are the same. Having full hashes is convenient as that is the
format that the bin/.cherry-ignore script requires to work correctly.

Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Juan A. Suarez <jasuarez@igalia.com>

bin/get-pick-list.sh

@@ -143,7 +143,7 @@ do
 	esac
 
 	printf "[ %8s ] " "$tag"
-	git --no-pager show --no-patch --oneline $sha
+	git --no-pager show --no-patch --pretty=oneline $sha
 done
 
 rm -f already_picked