[PATCH] D159312: [Headers] Remove a space in NULL define

[Heejin Ahn via Phabricator via cfe-commits]

aheejin added a comment.

The added space actually caused emscripten's CI to break: https://logs.chromium.org/logs/emscripten-releases/buildbucket/cr-buildbucket/8771230198259238865/+/u/Build_Emscripten__upstream_/stdout


Repository:
  rG LLVM Github Monorepo

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https://reviews.llvm.org/D159312