update cauchystat example to conform more with standard LAMMPS examples

examples/cauchystat/README

@@ -1,6 +1,6 @@
 Run this example by executing:
 
-% lmp -in lammps.in
+% lmp -in in.cauchystat
 
 Note that this example use an EAM potential, and therefore must be
 run with a LAMMPS executable built with the MANYBODY package.

examples/cauchystat/in.cauchystat

@@ -33,6 +33,8 @@ fix 1 all npt temp 600.0 600.0 1.0 &
 
 dump 1 all cfg 1000 test*.cfg mass type xs ys zs type c_cna
 
+info fixes
+
 timestep 0.002
 
 variable px equal pxx
@@ -66,3 +68,11 @@ fix 1 all npt temp 600.0 600.0 1.0 &
                      couple none cauchystat 0.001 yes
 
 run 10000
+
+fix 1 all npt temp 600.0 600.0 1.0 &
+                     x 0.0 0.0 0.1 &
+                     y 0.0 0.0 0.1 &
+                     z 0.0 0.0 0.1 &
+                     xy -10000.0 -10000.0 0.1 &
+                     couple none cauchystat 0.001 no
+run 10000