+@item commit [-q] [-f @var{fmt}] [-t @var{cache}] @var{filename}
+ETEXI
+
+DEF("compare", img_compare,
+ "compare [-f fmt] [-F fmt] [-p] [-q] [-s] filename1 filename2")
+STEXI
+@item compare [-f @var{fmt}] [-F @var{fmt}] [-p] [-q] [-s] @var{filename1} @var{filename2}