HTTPClientInternalTests.testProxyStreaming fails with unclean shutdown #178
Description
With #177, there is now a test failure in HTTPClientInternalTests.testProxyStreaming:
Test Case 'HTTPClientInternalTests.testProxyStreaming' started at 2020-03-05 19:58:19.461
/code/Tests/AsyncHTTPClientTests/HTTPClientInternalTests.swift:110: error: HTTPClientInternalTests.testProxyStreaming : XCTAssertNoThrow failed: threw error "HTTPClientError.uncleanShutdown" -