httpclient: use os.ReadFile instead of deprecated ioutil.ReadFile

Author: stapelberg

httpclient/httpclient.go

@@ -4,7 +4,6 @@ import (
 	"crypto/tls"
 	"crypto/x509"
 	"fmt"
-	"io/ioutil"
 	"log"
 	"net/http"
 	"net/url"
@@ -32,7 +31,7 @@ func GetTLSHttpClientByTLSFlag(tlsFlag string, tlsInsecure bool, baseUrl *url.UR
 	// Append user specified certificate(s)
 	if tlsFlag != "self-signed" && tlsFlag != "" {
 		usrCert := strings.Split(tlsFlag, ",")[0]
-		certBytes, err := ioutil.ReadFile(usrCert)
+		certBytes, err := os.ReadFile(usrCert)
 		if err != nil {
 			return nil, false, fmt.Errorf("reading user specified certificate %s: %v", usrCert, err)
 		}
@@ -44,7 +43,7 @@ func GetTLSHttpClientByTLSFlag(tlsFlag string, tlsInsecure bool, baseUrl *url.UR
 		if _, err := os.Stat(certPath); !os.IsNotExist(err) {
 			foundMatchingCertificate = true
 			log.Printf("Using certificate %s", certPath)
-			certBytes, err := ioutil.ReadFile(certPath)
+			certBytes, err := os.ReadFile(certPath)
 			if err != nil {
 				return nil, false, fmt.Errorf("reading certificate %s: %v", certPath, err)
 			}