Send output of stty test cmd to stderr.
Send output of stty test cmd to stderr.

Send the output of the stty test for terminal size to stderr.

Fixes LP Bug #961820.

Change-Id: Ifc46632c9cf8bffb2dec7ef48f17157bf8ae1199

sigmavirus24/glance,rickerc/glance_audit,jumpstarter-io/glance,akash1808/glance,JioCloud/glance,cloudbau/glance,SUSE-Cloud/glance,dims/glance,akash1808/glance,saeki-masaki/glance,cloudbau/glance,vuntz/glance,wkoathp/glance,SUSE-Cloud/glance,ozamiatin/glance,tanglei528/glance,openstack/glance,ntt-sic/glance,citrix-openstack-build/glance,vuntz/glance,paramite/glance,klmitch/glance,takeshineshiro/glance,kfwang/Glance-OVA-OVF,darren-wang/gl,ntt-sic/glance,stevelle/glance,sigmavirus24/glance,openstack/glance,klmitch/glance,tanglei528/glance,citrix-openstack-build/glance,wkoathp/glance,scripnichenko/glance,rajalokan/glance,redhat-openstack/glance,takeshineshiro/glance,JioCloud/glance,jumpstarter-io/glance,kfwang/Glance-OVA-OVF,ozamiatin/glance,darren-wang/gl,rickerc/glance_audit,dims/glance,stevelle/glance,redhat-openstack/glance,saeki-masaki/glance,openstack/glance,scripnichenko/glance,rajalokan/glance,paramite/glance