pcap: Fix definition of ssh_pcap_file_new().
pcap: Fix definition of ssh_pcap_file_new().

Fixes sparse warnings.

bigcat26/libssh-mod,jt1/honeypot-libssh,taikoo/libssh,nviennot/libssh,wangshawn/libssh,bigcat26/libssh-mod,taikoo/libssh,Distrotech/libssh,sebadoom/libssh,DouglasHeriot/libssh,DouglasHeriot/libssh,taikoo/libssh,pouete/libssh,pouete/libssh,sebadoom/libssh,mwgoldsmith/libssh,mwgoldsmith/ssh,jt1/honeypot-libssh,elastichosts/libssh,bigcat26/libssh-mod,robxu9/libssh,sebadoom/libssh,DouglasHeriot/libssh,nviennot/libssh,pouete/libssh,jt1/honeypot-libssh,robxu9/libssh,wangshawn/libssh,mwgoldsmith/libssh,kedazo/libssh,wangshawn/libssh,taikoo/libssh,elastichosts/libssh,nviennot/libssh,DouglasHeriot/libssh,wangshawn/libssh,nviennot/libssh,robxu9/libssh,Distrotech/libssh,mwgoldsmith/libssh,kedazo/libssh,mwgoldsmith/libssh,kedazo/libssh,sebadoom/libssh,Distrotech/libssh,kedazo/libssh,mwgoldsmith/ssh,mwgoldsmith/ssh,mwgoldsmith/ssh,robxu9/libssh,bigcat26/libssh-mod,Distrotech/libssh,elastichosts/libssh,pouete/libssh,jt1/honeypot-libssh