diff --git a/c/containers/mlrval.c b/c/containers/mlrval.c
index 224c18357..5e0553828 100644
--- a/c/containers/mlrval.c
+++ b/c/containers/mlrval.c
@@ -412,11 +412,6 @@ mv_t i_iii_modmul_func(mv_t* pval1, mv_t* pval2, mv_t* pval3) {
 	return rv;
 }
 
-mv_t i_iii_moddiv_func(mv_t* pval1, mv_t* pval2, mv_t* pval3) {
-	mv_t rv = {.type = MT_NULL, .u.intv = 0LL}; // xxx stub
-	return rv;
-}
-
 mv_t i_iii_modexp_func(mv_t* pval1, mv_t* pval2, mv_t* pval3) {
 	long long m = pval3->u.intv;
 	if (m <= 0LL)
diff --git a/c/output/lrec_writer_csvlite.c b/c/output/lrec_writer_csvlite.c
index 533197978..59177cade 100644
--- a/c/output/lrec_writer_csvlite.c
+++ b/c/output/lrec_writer_csvlite.c
@@ -84,5 +84,5 @@ static void lrec_writer_csvlite_process(FILE* output_stream, lrec_t* prec, void*
 	fputs(ors, output_stream);
 	pstate->onr++;
 
-	lrec_free(prec); // xxx cmt mem-mgmt
+	lrec_free(prec); // end of baton-pass
 }
diff --git a/c/output/lrec_writer_dkvp.c b/c/output/lrec_writer_dkvp.c
index 7affa95d7..d59e9f222 100644
--- a/c/output/lrec_writer_dkvp.c
+++ b/c/output/lrec_writer_dkvp.c
@@ -49,5 +49,5 @@ static void lrec_writer_dkvp_process(FILE* output_stream, lrec_t* prec, void* pv
 		nf++;
 	}
 	fputs(ors, output_stream);
-	lrec_free(prec); // xxx cmt mem-mgmt
+	lrec_free(prec); // end of baton-pass
 }
diff --git a/c/output/lrec_writer_nidx.c b/c/output/lrec_writer_nidx.c
index 3cc30d573..92e0544b3 100644
--- a/c/output/lrec_writer_nidx.c
+++ b/c/output/lrec_writer_nidx.c
@@ -44,5 +44,5 @@ static void lrec_writer_nidx_process(FILE* output_stream, lrec_t* prec, void* pv
 		nf++;
 	}
 	fputs(ors, output_stream);
-	lrec_free(prec); // xxx cmt mem-mgmt
+	lrec_free(prec); // end of baton-pass
 }
diff --git a/c/output/lrec_writer_pprint.c b/c/output/lrec_writer_pprint.c
index 5e28b1f6e..8f6008343 100644
--- a/c/output/lrec_writer_pprint.c
+++ b/c/output/lrec_writer_pprint.c
@@ -159,7 +159,7 @@ static void print_and_free_record_list(sllv_t* precords, FILE* output_stream, ch
 		}
 		fputs(ors, output_stream);
 
-		lrec_free(prec); // xxx cmt mem-mgmt
+		lrec_free(prec); // end of baton-pass
 	}
 
 	free(max_widths);
diff --git a/c/output/lrec_writer_xtab.c b/c/output/lrec_writer_xtab.c
index 179d7e370..889803a22 100644
--- a/c/output/lrec_writer_xtab.c
+++ b/c/output/lrec_writer_xtab.c
@@ -88,7 +88,7 @@ static void lrec_writer_xtab_process_aligned(FILE* output_stream, lrec_t* prec,
 		}
 		fprintf(output_stream, "%s%s%s", pstate->ops, pe->value, pstate->ofs);
 	}
-	lrec_free(prec); // xxx cmt mem-mgmt
+	lrec_free(prec); // end of baton-pass
 }
 
 static void lrec_writer_xtab_process_unaligned(FILE* output_stream, lrec_t* prec, void* pvstate) {
@@ -103,5 +103,5 @@ static void lrec_writer_xtab_process_unaligned(FILE* output_stream, lrec_t* prec
 		// "%-*s" fprintf format isn't correct for non-ASCII UTF-8
 		fprintf(output_stream, "%s%s%s%s", pe->key, pstate->ops, pe->value, pstate->ofs);
 	}
-	lrec_free(prec); // xxx cmt mem-mgmt
+	lrec_free(prec); // end of baton-pass
 }