Apply Valgrind fix as per @velichkov

skeletons/BOOLEAN.c

@@ -356,13 +356,14 @@ BOOLEAN_encode_aper(const asn_TYPE_descriptor_t *td,
                     const asn_per_constraints_t *constraints,
                     const void *sptr, asn_per_outp_t *po) {
 	const BOOLEAN_t *st = (const BOOLEAN_t *)sptr;
-	asn_enc_rval_t er;
+	asn_enc_rval_t er = { 0, 0, 0 };
 
 	(void)constraints;
 
 	if(!st) ASN__ENCODE_FAILED;
 
-	per_put_few_bits(po, *st ? 1 : 0, 1);
+	if(per_put_few_bits(po, *st ? 1 : 0, 1))
+        	ASN__ENCODE_FAILED;
 
 	ASN__ENCODED_OK(er);
 }