title: Remove unnecessary characters from tcpdump output
body: <p>I am using this command to spy on local (macOS) HTTP traffic:</p>
  
  <pre><code>sudo tcpdump -A -s 0 'tcp port 4444 and (((ip[2:2] - ((ip[0]&amp;0xf)&lt;&lt;2)) - ((tcp[12]&amp;0xf0)&gt;&gt;2)) != 0)' -i lo0
  </code></pre>
  
  <p>I works magic but also outputs unnecessary characters:</p>
  
  <pre><code>{"message":"body"}
  14:29:07.725362 IP localhost.64258 &gt; localhost.krb524: Flags [P.],seq 1004:1579, ack 469, win 11768, options [nop,nop,TS val 1448865401 ecr 1448865398], length 575 E..s..@.@..............\...^Z.&gt;...-..h.....
  V[.yV[.vPOST /v2/8387efc52b0b6b14e83bcd1d1951bdb2 HTTP/1.1
  Content-Type: application/json; charset=utf-8
  </code></pre>
  
  <p>Should be:</p>
  
  <pre><code>{"message":"body"}
  
  POST /v2/8387efc52b0b6b14e83bcd1d1951bdb2 HTTP/1.1
  Content-Type: application/json; charset=utf-8
  </code></pre>