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     How do I strip blank space from the beginning/end of a
     string?
...

             s/^\s+//;
             s/\s+$//;

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use Benchmark 'cmpthese';

...
[16:10] <Joe> capt_repl 271691/s        4%        --       -3%      -6
+8%
[16:10] <Joe> rx_rx     279271/s        7%        3%        --      -6
+7%
[16:10] <Joe> last      859023/s      228%      216%      208%        
+--