Termux doesn't have a /bin/sh. So we needto use $SHELL. Keep /bin/sh as much as possible.
commands, to guard against corrupted grub-mkconfig setups that produce no useful output. * tests/grub_script_no_commands.in: New test. * Makefile.util.def (grub_script_no_commands): Add. Reported by Hans Putter. Fixes Debian bug #713886.