[plugin] fix shasum for some linux distros
[plugin] fix shasum for some linux distros

Summary:
includes D12975727

update-submodule: facebook-clang-plugins

Reviewed By: ddino

Differential Revision: D13057857

fbshipit-source-id: 575311b4c

facebook/infer,jvillard/infer,facebook/infer,jvillard/infer,jvillard/infer,facebook/infer,jvillard/infer,jvillard/infer,jvillard/infer,facebook/infer,facebook/infer,facebook/infer,jvillard/infer,facebook/infer