Prevent these errors when using help flag

[00000001] main libvlc error: option daemon does not exist
[00000001] main libvlc error: option pidfile does not exist

The were due to the module_EndBand( p_libvlc ); on line 430 in libvlc-common.c . Please check that this is the correct way of doing it.

src/libvlc-common.c

@@ -1007,6 +1007,7 @@ int libvlc_InternalDestroy( libvlc_int_t *p_libvlc, vlc_bool_t b_release )
 #ifndef WIN32
     char* psz_pidfile = NULL;
 
+    if( p_libvlc->p_libvlc_global->p_module_bank )
     if( config_GetInt( p_libvlc, "daemon" ) )
     {
         psz_pidfile = config_GetPsz( p_libvlc, "pidfile" );