/* Do reference counting. The value 'op' decides what to do.
* if it is +1 then the count is incremented. If op is 0 count is
* set to 1. If op is -1 count is decremented and the return value
- * is the current refrence count or 0 if no reference count exists.
+ * is the current reference count or 0 if no reference count exists.
*/
int asn1_do_lock(ASN1_VALUE **pval, int op, const ASN1_ITEM *it)