-Interactively, delete the marked patches, or the patch at point."
- (interactive (list (stgit-patches-marked-or-at-point)))
+Interactively, delete the marked patches, or the patch at point.
+
+With a prefix argument, or SPILL-P, spill the patch contents to
+the work tree and index."
+ (interactive (list (stgit-patches-marked-or-at-point)
+ current-prefix-arg))