runtime.c: Backport appimage-updateinformation and appimage-signature

[probonopd]

NOTE: Must be implemented with no additional dependencies to external repositories.

static-tools/src/runtime/runtime.c

Lines 1444 to 1454 in fc1d0f1

	if (arg && (strcmp(arg, "appimage-updateinformation") == 0 || strcmp(arg, "appimage-updateinfo") == 0)) {
	fprintf(stderr, "--%s is not yet implemented in version %s\n", arg, GIT_COMMIT);
	// NOTE: Must be implemented in this .c file with no additional dependencies
	exit(1);
	}
	if (arg && strcmp(arg, "appimage-signature") == 0) {
	fprintf(stderr, "--%s is not yet implemented in version %s\n", arg, GIT_COMMIT);
	// NOTE: Must be implemented in this .c file with no additional dependencies
	exit(1);
	}