build: fix govet lint errors with golangci-lint v1.60.1

There were a lot of instances of this lint error

    printf: non-constant format string in call to github.com/rclone/rclone/fs.Logf (govet)

Which were fixed by re-arranging the arguments and adding "%s".

There were quite a few genuine bugs which were found too.

lib/jwtutil/jwtutil.go

@@ -104,7 +104,7 @@ func bodyToString(responseBody io.Reader) (bodyString string, err error) {
 		return "", err
 	}
 	bodyString = string(bodyBytes)
-	fs.Debugf(nil, "jwtutil: Response Body: "+bodyString)
+	fs.Debugf(nil, "jwtutil: Response Body: %q", bodyString)
 	return bodyString, nil
 }