std error

[Ralf Mardorf]

[rocketmouse at archlinux ~]$ xfce4-session -V | head -1
xfce4-session 4.12.1 (Xfce 4.12)
[rocketmouse at archlinux ~]$ man xfce4-session | grep XFSM_VERBOSE -A4
       XFSM_VERBOSE
              When  defined, this environment variable enables
debugging messages to be saved to ~/.xfce4-ses‐ sion.verbose-log The
log file from the last session run with this environment  variable
set  is retained  at  ~/.xfce4-session.verbose-log.last  These
debugging  messages are useful for trou‐ bleshooting and development.