Usage: grub-glue-efi [OPTION...] [OPTIONS]
Glue 32-bit and 64-bit binary into Apple universal one.

  -3, --input32=FILE         set input filename for 32-bit part.
  -6, --input64=FILE         set input filename for 64-bit part.
  -o, --output=FILE          set output filename. Default is STDOUT
  -v, --verbose              print verbose messages.
  -?, --help                 give this help list
      --usage                give a short usage message
  -V, --version              print program version

Mandatory or optional arguments to long options are also mandatory or optional
for any corresponding short options.

Report bugs to <bug-grub@gnu.org>.