"Alexandr Miloslavskiy via GitGitGadget" [off-list ref]
writes:
+-q::
+--quiet::
+ Quiet, suppress feedback messages.
+
+\--::
+ Separates pathspec from options for disambiguation purposes.
+
<pathspec>...::
The new stash entry records the modified states only for the files
that match the pathspec. The index entries and working tree files
OK. Describing these in the documentation is a good thing. How
they should be added depends on in what shape the patch 4/8 should
settle, though.
Thanks.