message: curl: Disable nghttp2.
diff: @@ -571,6 +571,7 @@ def configure(cxx_toolkit = None,
  '--with-gssapi',
  '--without-libidn',
  '--without-libssh2',
  + '--without-nghttp2',
  ]
  if cxx_toolkit.os is not drake.os.ios:
  curl_configure_args.append(
  