Add ChangeLog entry for #11100.
Add ChangeLog entry for #11100.

david415/obfsproxy,isislovecruft/obfsproxy,Yawning/obfsproxy-wfpadtools,masterkorp/obfsproxy,catinred2/obfsproxy,Yawning/obfsproxy,qdzheng/obfsproxy,NullHypothesis/obfsproxy