5717 - Gamecode can open file "" for reading

code/qcommon/qcommon.h

@@ -1107,6 +1107,7 @@ qboolean	Sys_StringToAdr( const char *s, netadr_t *a, netadrtype_t family );
 qboolean	Sys_IsLANAddress (netadr_t adr);
 void		Sys_ShowIP(void);
 
+FILE	*Sys_FOpen( const char *ospath, const char *mode );
 qboolean Sys_Mkdir( const char *path );
 FILE	*Sys_Mkfifo( const char *ospath );
 char	*Sys_Cwd( void );