Fixes a conflict with the Windows file system on Go/fasthttp (#2286)

frameworks/Go/fasthttp/source_code

@@ -4,5 +4,5 @@
 ./fasthttp/src/server-mysql/server.go
 ./fasthttp/src/server-postgresql/server.go
 ./fasthttp/src/templates/
-./fasthttp/src/templates/aux.go
+./fasthttp/src/templates/auxiliary.go
 ./fasthttp/src/templates/fortune.qtpl