List patch comments

GET /api/patches/351/comments/?format=api&order=date
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Link: 
<https://patches.dpdk.org/api/patches/351/comments/?format=api&order=date&page=1>; rel="first",
<https://patches.dpdk.org/api/patches/351/comments/?format=api&order=date&page=1>; rel="last"
Vary: Accept
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