linter fixes

client.go

@@ -9,7 +9,6 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"net"
 	"net/http"
 	"net/http/httputil"
@@ -37,7 +36,7 @@ func ExponentialBackoff(b float64, d time.Duration) BackoffFunc {
 */
 
 type Client struct {
-	sync.Mutex
+	mu        sync.Mutex
 	endpoints []string
 	username  string
 	password  string
@@ -231,8 +230,8 @@ func (c *Client) Auth() (err error) {
 	if !time.Now().After(c.session.Time) {
 		return
 	}
-	c.Lock()
-	defer c.Unlock()
+	c.mu.Lock()
+	defer c.mu.Unlock()
 	if !time.Now().After(c.session.Time) {
 		return
 	}
@@ -289,13 +288,13 @@ func (c *Client) Do(r *http.Request, v interface{}) (resp *http.Response, err er
 	if err != nil {
 		return
 	}
-	body, err := ioutil.ReadAll(resp.Body)
+	body, err := io.ReadAll(resp.Body)
 	if err != nil {
 		resp.Body.Close()
 		return
 	}
 	resp.Body.Close()
-	resp.Body = ioutil.NopCloser(bytes.NewReader(body))
+	resp.Body = io.NopCloser(bytes.NewReader(body))
 
 	if c.debugWriter != nil {
 		dumpResp, err := httputil.DumpResponse(resp, true)