fix model converter, dirname() of glibc manipulates the passed buffer, so we need to use a copy there
fix model converter, dirname() of glibc manipulates the passed buffer, so we need to use a copy there

hpi-xnor/BMXNet,hpi-xnor/BMXNet,hpi-xnor/BMXNet,hpi-xnor/BMXNet,hpi-xnor/BMXNet,hpi-xnor/BMXNet,hpi-xnor/BMXNet,hpi-xnor/BMXNet,hpi-xnor/BMXNet