Fix formatting

sim.c

@@ -535,10 +535,13 @@ BEGIN_OPERATOR(jump)
   POKE(1, 0, PEEK(-1, 0));
 END_OPERATOR
 
+// Note: this is merged from a pull request without being fully tested or
+// optimized
 BEGIN_OPERATOR(konkat)
   LOWERCASE_REQUIRES_BANG;
   Isz len = (Isz)index_of(PEEK(0, -1));
-  if (len == 0) len = 1;
+  if (len == 0)
+    len = 1;
   PORT(0, -1, IN | PARAM);
   for (Isz i = 0; i < len; ++i) {
     PORT(0, i + 1, IN);