How can you only show User-Agent GET request without rest of the Debug output?

[Sultanbek Umkhayev]

Is there no way to just show the GET request User-Agent: only with debug 
-d. I would like to just see ---request begin--- GET output of only what 
user agent is being used not all the other debug info.

Reason being if I set --user-agent="Agent 007" I would like to know it 
is working actually being sent.
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