fix typo in protoop.h
@@ -170,7 +170,7 @@ static const protoop_id_t PROTOOP_NOPARAM_FIND_READY_STREAM = "find_ready_stream
static const protoop_id_t PROTOOP_NOPARAM_IS_ACK_NEEDED = "is_ack_needed";
/**
- * Chec if the TLS stream is ready to send.
+ * Check if the TLS stream is ready to send.
*
* \return \b int Iff non-zero, indicates that the TLS stream is ready
*/
