rPd4af32c1d412

Fix setup check for gzip request mangling being sent as GET

Summary:
Certain web servers (or cache layers such as Varnish) strip the body
of GET requests, resulting in the setup check failing when it would
otherwise function normally if a request is sent as POST.

Test Plan:
Phorge will no-longer mark the test as failing due to the body of a GET request being dropped.
As per RFC7231, certain implementations of HTTP/1.1 may reject the request or drop the payload
due to a previous revision of the spec where…