make: include build name

Include long version string into tools when called with --version.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
man: trafgen: corrections and various edits to manual page

Signed-off-by: Jon Schipp <jonschipp@gmail.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>