Matthew Rothenberg
dc30e9f64d
speedup bash completion loading suggestion in docs ...
The current suggestion for users shells out to `brew --prefix` three separate times, which has a non-zero overhead (as per quick benchmark below, approx 20ms per invocation). By making a minor change, the first invocation can be stored in a local variable to reduce shell startup time.
```
$ hyperfine --warmup=3 'brew --prefix'
Benchmark #1 : brew --prefix
Time (mean ± σ): 21.3 ms ± 1.5 ms [User: 8.8 ms, System: 10.6 ms]
Range (min … max): 20.3 ms … 37.0 ms 128 runs
```
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dc30e9f64d