Description of problem:
When using RSA Agent for PAM to allow SecurID authentication (pam module pam_securid.so), gvfs-mount fails.
When attempting to mount remote paths via sftp using gvfs (e.g. in Nautilus) it times out at the password prompt on the remote ssh sever. 

$ date; gvfs-mount sftp://user01@host02; date
Thu Mar 30 12:21:54 UTC 2017
Error mounting location: Timed out when logging in
Thu Mar 30 12:22:34 UTC 2017

It appears that gvfs waits for below prompt strings to match.

gvfs-1.22.4/daemon/gvfsbackendsftp.c

if (g_str_has_suffix (buffer, "password: ") ||
          g_str_has_suffix (buffer, "Password: ") ||
          g_str_has_suffix (buffer, "Password:")  ||
          g_str_has_prefix (buffer, "Password for ") ||
          g_str_has_prefix (buffer, "Enter Kerberos password") ||
          g_str_has_prefix (buffer, "Enter passphrase for key"))
        {

whereas RSA Agent's password prompt string is "Enter PASSCODE:"

Same is in upstream : https://git.gnome.org/browse/gvfs/tree/daemon/gvfsbackendsftp.c?h=gnome-3-14#n931

Version-Release number of selected component (if applicable):
Red Hat Enterprise Linux 7.2
gvfs-1.22.4-8.el7.x86_64

How reproducible:
Always

Steps to Reproduce:
1. gvfs-mount sftp://user01@host02
2.
3.

Actual results:
$ date; gvfs-mount sftp://user01@host02; date
Thu Mar 30 12:21:54 UTC 2017
Error mounting location: Timed out when logging in
Thu Mar 30 12:22:34 UTC 2017

If the password prompt does not match any of defined, it will time out and fail as shown above.

Expected results:
Add a check to include "Enter PASSCODE:"

+	  g_str_has_prefix (buffer, "Enter PASSCODE:"))

Additional info: