Question about -b mode of sftp(1) and auto-chdir behaviour

[Steffen "Daode" Nurpmeso]

Hello,
i'm curious to know wether the automatic chdir behaviour of sftp(1)
in batch mode is a side-effect of the current implementation, or
if it's instead a regular feature.  And, if it's indeed the latter,
wether there is any compatibility problem if one would actually
rely on it?
I'll attach a copy+paste diff to document this nice feature in
sftp.1, just for the hoped-for case.
Thank you!  ..and ciao,

--steffen
-------------- next part --------------
diff --git a/sftp.1 b/sftp.1
--- a/sftp.1
+++ b/sftp.1
@@ -57,7 +57,11 @@
 .Oc
 .Nm sftp
 .Fl b Ar batchfile
-.Oo Ar user Ns @ Oc Ns Ar host
+.Oo
+.Ar user Ns @ Oc Ns
+.Ar host Ns Oo : Ns Ar dir Ns
+.Op Ar /
+.Oc
 .Sh DESCRIPTION
 .Nm
 is an interactive file transfer program, similar to