Fix de-selecting of drivers in configure by removing non-portable switch to sed.

Silent some compiler and lint warnings.

clients/lcdproc/main.c

@@ -337,6 +337,9 @@ main(int argc, char **argv)
 
 	// Clean up & exit
 	exit_program(EXIT_SUCCESS);
+
+	/* NOTREACHED */
+	return EXIT_SUCCESS;
 }