Fix typo - the option is called "--fuzz-target" and not "--fuzz_taget".
Also use a different fuzzer in the example, since "virtio-net-fork-fuzz"
does not seem to be a valid fuzzer target (anymore?).
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20200709084059.22539-1-thuth@redhat.com>