Fixed overwrite of test.out output

scripts/cov.sh

@@ -8,7 +8,7 @@ go test -v -covermode=atomic -coverprofile=./cov/conf.out ./conf
 go test -v -covermode=atomic -coverprofile=./cov/log.out ./logger
 go test -v -covermode=atomic -coverprofile=./cov/server.out ./server
 go test -v -covermode=atomic -coverprofile=./cov/test.out ./test
-go test -v -covermode=atomic -coverprofile=./cov/test.out -coverpkg=./server ./test
+go test -v -covermode=atomic -coverprofile=./cov/test2.out -coverpkg=./server ./test
 gocovmerge ./cov/*.out > acc.out
 rm -rf ./cov