This PR:
- Removes mappings that have been backported upstream.
- Adds a new temporary mapping to work around upstream issue.
- Document the existing mappings for libc symbols.
This PR:
See https://github.com/include-what-you-use/include-what-you-use/pull/1706.
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lgtm ACK 9c839aa9e3db30e2fa7d45b087a13bdd86b2a085
ACK 9c839aa9e3db30e2fa7d45b087a13bdd86b2a085