commit e9f9c9b1c3d7840b9166f58e77a7bfe563389e8b
from: Omar Polo <op@omarpolo.com>
date: Wed Aug 04 13:10:52 2021 UTC

yield a message on invalid OPs before aborting

commit - c88781820c3e17b4706fc673e4fe9d70c8e42924
commit + e9f9c9b1c3d7840b9166f58e77a7bfe563389e8b
blob - 242e28ee5f0050b6b78c5e4c18afe38e817a581a
blob + 28b599d46b25f1ba7a8369fd149687e8779ac797
--- script.c
+++ script.c
@@ -415,6 +415,7 @@ eval(struct op *op)
 		break;
 
 	default:
+		fprintf(stderr, "invalid op, aborting.\n");
 		abort();
 	}