[Solved] gvfs-mount with sftp:// reports "unable to spawn ssh program"

Question

I have two arch installs for my laptop and desktop, both of which are running sshd, and both have the same sshd_config and ssh_config (as verified by md5sum). I can use ssh, scp, and sftp in either direction without issue.  Gvfs-mount works fine on the desktop, but fails on the laptop:
$ gvfs-mount sftp://192.168.1.10
Error mounting location: Unable to spawn SSH program
My googling of that error only results in hits for the source code of gvfs, and I get lost in the source trying to hunt down what would cause that error to occur.  Is there a session management thing I have to enable? I run vanilla GNOME with GDM on the desktop, but I use a custom .xinitrc file with startx on the laptop:
#!/bin/sh
# ~/.xinitrc
# Executed by startx (run your window manager from here)
if [ -d /etc/X11/xinit/xinitrc.d ]; then
for f in /etc/X11/xinit/xinitrc.d/*; do
[ -x "$f" ] && . "$f"
done
unset f
fi
xset r rate 200
xset -dpms s off
xbindkeys
. ~/.fehbg
conky -q &
metacity &
#Required for usb/cdrom/etc mounting in thunar
/usr/lib/polkit-gnome/polkit-gnome-authentication-agent-1 &
xfce4-panel
EDIT:
Executing startxfce4 in .xinitrc doesn't fix the issue, either.
Last edited by Odysseus (2015-02-18 09:59:59)

Answer 1

I tried running wayland today with weston, and I couldn't run weston-terminal due to an error about opening a pty. Turns out I still had lines in my fstab about /dev/pts, and most importantly, it was setting the wrong permissions.  I commented all that out, rebooted, and now both weston-terminal and gvfs-mount work properly.