Unfortunately code will always have bugs, especially when you are adding or changing it. However the numbers speak for themselves, LibreSSL has been removing large amounts of code http://www.openbsd.org/papers/libtls-fsec-2015/mgp00004.html and has so far had fewer CVEs http://www.openbsd.org/papers/libtls-fsec-2015/mgp00005.html.