Update Bluewing Server to build 21

Fix crash on error caused by use of LocalFree() on stack memory - a missed line in the optimisation added in build 19.

Author: SortaCore

Lacewing/Lacewing.h

@@ -1641,7 +1641,7 @@ struct relayclientinternal;
 struct relayclient
 {
 public:
-	const static int buildnum = 85;
+	const static int buildnum = 89;
 
 	void * internaltag = nullptr, *tag = nullptr;
 
@@ -1847,7 +1847,7 @@ namespace lacewing {
 struct relayserverinternal;
 struct relayserver
 {
-	static const int buildnum = 20;
+	static const int buildnum = 21;
 
 	void * internaltag, * tag = nullptr;
 

Lacewing/src/error.c

@@ -133,8 +133,6 @@ void lw_error_add (lw_error ctx, long error)
 				strlen(message) - 3, message, error);
 		}
 
-		LocalFree (message);
-
 	#else
 
 		lw_error_addf (ctx, "%s (%ld)", strerror (error), error);