update to latest libcryptoconditions

src/cryptoconditions

@@ -1 +1 @@
-Subproject commit e482849382f36702fe083c5604dd160f4ebaedd1
+Subproject commit 6b859e63a2bce5107f9b888823f2709a13dd3c26

src/script/interpreter.cpp

@@ -949,10 +949,9 @@ bool EvalScript(vector<vector<unsigned char> >& stack, const CScript& script, un
                     valtype& vchFulfillment = stacktop(-2);
                     valtype& vchCondition   = stacktop(-1);
 
-                    CC *cond = (CC*) calloc(1, sizeof(CC));
                     char *fulfillmentBin = (char*) vchFulfillment.data();
-                    int rc = cc_readFulfillmentBinary(cond, fulfillmentBin, vchFulfillment.size());
-                    if (rc != 0) {
+                    CC *cond = cc_readFulfillmentBinary(fulfillmentBin, vchFulfillment.size());
+                    if (!cond) {
                         return set_error(serror, SCRIPT_ERR_CRYPTOCONDITION_INVALID_FULFILLMENT);
                     }