PROTON-1307: go binding amqp.message does not honor Inferred flag

Applied fix provided by Richard Laos for typo in the SetInferred method.
diff --git a/proton-c/bindings/go/src/qpid.apache.org/amqp/message.go b/proton-c/bindings/go/src/qpid.apache.org/amqp/message.go
index 4ae36f4..48a209a 100644
--- a/proton-c/bindings/go/src/qpid.apache.org/amqp/message.go
+++ b/proton-c/bindings/go/src/qpid.apache.org/amqp/message.go
@@ -261,7 +261,7 @@
 	return C.GoString(C.pn_string_get(str))
 }
 
-func (m *message) SetInferred(b bool)  { C.pn_message_set_inferred(m.pn, C.bool(m.Inferred())) }
+func (m *message) SetInferred(b bool)  { C.pn_message_set_inferred(m.pn, C.bool(b)) }
 func (m *message) SetDurable(b bool)   { C.pn_message_set_durable(m.pn, C.bool(b)) }
 func (m *message) SetPriority(b uint8) { C.pn_message_set_priority(m.pn, C.uint8_t(b)) }
 func (m *message) SetTTL(d time.Duration) {