[Gmsh] warnings are not redirected into log file

[Bernd Hahnebach]

Dear GMSH user and developer,

I'm redirecting the output of GMSH run into a logfile on linux bash.  
The following command is used.

gmsh  /tmp/part_jacobian_geometry.brep  -3  -format unv  -o  
/tmp/part_jacobian_mesh.unv  -order 2   > /tmp/mylog

The problem I have is Warnings are not written into the log file. They  
are still printed into the terminal. What do I need to do to redirect  
the warnings into the log file as well.

kind regards bernd