btrbk: add mainProgram (#356350)

Atemu 34a62645 2aadf1cf

Changed files
+1
pkgs
by-name
bt
btrbk
+1
pkgs/by-name/bt/btrbk/package.nix
···
license = licenses.gpl3Only;
platforms = platforms.unix;
maintainers = with maintainers; [ asymmetric ];
+
mainProgram = "btrbk";
};
}