Fix a search and replace error
Fix a search and replace error

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