command.c: error message on one line (joints_axes)
command.c: error message on one line (joints_axes)

Note:
     If multiple guis are active, it is possible for one of the
     guis to send a jog command for the wrong mode (joint, teleop)
     if the mode has been changed by the other gui.

     While this should be checked first in each gui, the code in
     command.c has some provisions to guard, abort on the error,
     and print a message.

Signed-off-by: Dewey Garrett <546ec366615570e68497e3c5df9092106a9808f4@panix.com>

ikcalB/linuxcnc-mirror,ikcalB/linuxcnc-mirror,ikcalB/linuxcnc-mirror,ikcalB/linuxcnc-mirror,ikcalB/linuxcnc-mirror,ikcalB/linuxcnc-mirror,ikcalB/linuxcnc-mirror