*: remove unnecessary fmt.Sprint

Signed-off-by: Gyu-Ho Lee <gyuhox@gmail.com>

etcdctl/ctlv3/command/printer.go

@@ -167,10 +167,10 @@ func makeEndpointStatusTable(statusList []epStatus) (hdr []string, rows [][]stri
 	hdr = []string{"endpoint", "ID", "version", "db size", "is leader", "raft term", "raft index"}
 	for _, status := range statusList {
 		rows = append(rows, []string{
-			fmt.Sprint(status.Ep),
+			status.Ep,
 			fmt.Sprintf("%x", status.Resp.Header.MemberId),
-			fmt.Sprint(status.Resp.Version),
-			fmt.Sprint(humanize.Bytes(uint64(status.Resp.DbSize))),
+			status.Resp.Version,
+			humanize.Bytes(uint64(status.Resp.DbSize)),
 			fmt.Sprint(status.Resp.Leader == status.Resp.Header.MemberId),
 			fmt.Sprint(status.Resp.RaftTerm),
 			fmt.Sprint(status.Resp.RaftIndex),

tools/functional-tester/etcd-agent/agent.go

@@ -15,7 +15,6 @@
 package main
 
 import (
-	"fmt"
 	"os"
 	"os/exec"
 	"path/filepath"
@@ -232,9 +231,9 @@ func existDir(fpath string) bool {
 }
 
 func archiveLogAndDataDir(logDir string, datadir string) error {
-	dir := filepath.Join(logDir, "failure_archive", fmt.Sprint(time.Now().Format(time.RFC3339)))
+	dir := filepath.Join(logDir, "failure_archive", time.Now().Format(time.RFC3339))
 	if existDir(dir) {
-		dir = filepath.Join(logDir, "failure_archive", fmt.Sprint(time.Now().Add(time.Second).Format(time.RFC3339)))
+		dir = filepath.Join(logDir, "failure_archive", time.Now().Add(time.Second).Format(time.RFC3339))
 	}
 	if err := fileutil.TouchDirAll(dir); err != nil {
 		return err