engine: common: fix warning about read-only cvar. In fact, we should force set them.

engine/common/net_chan.c

@@ -254,7 +254,7 @@ void Netchan_Init( void )
 	Cvar_RegisterVariable( &net_chokeloop );
 	Cvar_RegisterVariable( &net_showdrop );
 	Cvar_RegisterVariable( &net_qport );
-	Cvar_DirectSet( &net_qport, buf );
+	Cvar_FullSet( net_qport.name, buf, net_qport.flags );
 
 	net_mempool = Mem_AllocPool( "Network Pool" );
 

engine/common/net_ws.c

@@ -2111,10 +2111,10 @@ void NET_Init( void )
 	Cvar_RegisterVariable( &net_fakeloss );
 
 	Q_snprintf( cmd, sizeof( cmd ), "%i", PORT_SERVER );
-	Cvar_DirectSet( &net_hostport, cmd );
+	Cvar_FullSet( "hostport", cmd, FCVAR_READ_ONLY );
 
 	Q_snprintf( cmd, sizeof( cmd ), "%i", PORT_CLIENT );
-	Cvar_DirectSet( &net_clientport, cmd );
+	Cvar_FullSet( "clientport", cmd, FCVAR_READ_ONLY );
 
 	// cvar equivalents for IPv6
 	Cvar_RegisterVariable( &net_ip6name );