stlcstrReturn
ftp://ftp.de.debian.org/debian/pool/main/e/easyloggingpp/easyloggingpp_9.97.1+dfsg.orig.tar.xz
easyloggingpp-9.97.1/samples/API/logbuilder.cpp:20:9: performance: Returning the result of c_str() in a function that returns std::string is slow and redundant. [stlcstrReturn]