JJ: Description from the destination commit:

mv data/ default/

JJ: Description from source commit:
~

tools/offline.ml

@@ -1,4 +1,7 @@
 (* TODO
+   change download_cmd/upload_cmd
+   change arguments: '_' -> '-'
+
    all management operations:
      /management/wire
      /management/wire/disable
@@ -65,18 +68,9 @@ module Arg = struct
     Arg.Conv.make ~docv:"eddsa public key argument" ~parser ~pp ()
 end
 
-let default_master_offline_key_file = "data/master_offline_private_key"
-(*
-let default_response_file = "response.json"
-let default_request_file = "request.json"
-*)
-
 let master_key =
   let doc = "Master offline Eddsa private key file." in
-  Arg.(
-    value
-    & opt file default_master_offline_key_file
-    & info [ "master_key_file" ] ~doc)
+  Arg.(required & opt (some file) None & info [ "master_key" ] ~doc)
 
 let input =
   let doc = "input file" in
@@ -94,10 +88,7 @@ let setup_cmd =
   let doc = "Generate offline master keys" in
   let output =
     let doc = "output file" in
-    Arg.(
-      value
-      & opt filepath default_master_offline_key_file
-      & info [ "o"; "output" ] ~doc)
+    Arg.(required & opt (some filepath) None & info [ "o"; "output" ] ~doc)
   in
   Cmd.make (Cmd.info "setup" ~doc)
   @@
@@ -105,17 +96,14 @@ let setup_cmd =
   setup ~output
 
 let download_cmd =
-  let doc = "GET /management/keys/" in
-  let man =
-    [ `S Manpage.s_description; `P "$(cmd) download /management/keys." ]
-  in
-  Cmd.make (Cmd.info "download" ~doc ~man)
+  let doc = "GET" in
+  Cmd.make (Cmd.info "download" ~doc)
   @@
   let+ output = output in
   download ~output
 
 let upload_cmd =
-  let doc = "POST input.json data to url (default /management/keys)" in
+  let doc = "POST" in
   Cmd.make (Cmd.info "upload" ~doc)
   @@
   let+ input = input and+ url = url in