Fix formatting issues for onnx
Summary:
These are formatting changes automatically done with `arc f` to deal with issues landing the onnx changes in this stack
{F703786210}
Test Plan: yeah_sandcastle
Reviewed By: malfet
Differential Revision: D34402111
fbshipit-source-id: 06eb352d1e4f8b1439a580148fe1060fb5c9e102
(cherry picked from commit 7bbf29ed8ed60b6250490d1aad9ec51a94a0e310)
