gbx: fix a compiler warning

git-svn-id: http://streamboard.de.vu/svn/oscam/trunk@9709 4b0bc96b-bc66-0410-9d44-ebda105a78c1
gbx: fix another compiler warning

git-svn-id: http://streamboard.de.vu/svn/oscam/trunk@9710 4b0bc96b-bc66-0410-9d44-ebda105a78c1
gbx: try to fix compiler warning reported by stefansp
     warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result]
     changed min msg size from 5 to 6

git-svn-id: http://streamboard.de.vu/svn/oscam/trunk@9711 4b0bc96b-bc66-0410-9d44-ebda105a78c1