* Remove unnecessary ssh-vulnkey output in non-verbose mode when no compromised or unknown keys were found (closes: #496495). * Configure with --disable-strip; dh_strip will deal with stripping binaries and will honour DEB_BUILD_OPTIONS (thanks, Bernhard R. Link; closes: #498681). * Fix handling of zero-length server banners (thanks, Tomas Mraz; closes: #497026).