[webserver-test] fix TestInvalidHeaders on macOS

Change-Id: I19cfb90ba18bf8b9125ca635f2417f4058c4c5f1
Reviewed-on: http://gerrit.cloudera.org:8080/15779
Reviewed-by: Hao Hao <hao.hao@cloudera.com>
Reviewed-by: Volodymyr Verovkin <verjovkin@cloudera.com>
Tested-by: Alexey Serbin <aserbin@cloudera.com>
1 file changed