With this change we are faster than GNU strip. :)
```
markj@raichu> time strip ghc-8.6.2/libraries/Cabal/Cabal/dist-install/build/libHSCabal-2.4.0.1.a
real 0m2.147s
user 0m1.767s
sys 0m0.187s
markj@raichu> time /usr/local/bin/strip ghc-8.6.2/libraries/Cabal/Cabal/dist-install/build/libHSCabal-2.4.0.1.a
real 0m2.918s
user 0m2.662s
sys 0m0.166s
markj@raichu> time strip ghc-8.6.2/libraries/Cabal/Cabal/dist-install/build/libHSCabal-2.4.0.1_p.a
real 0m4.546s
user 0m4.109s
sys 0m0.204s
markj@raichu> time /usr/local/bin/strip ghc-8.6.2/libraries/Cabal/Cabal/dist-install/build/libHSCabal-2.4.0.1_p.a
real 0m4.670s
user 0m4.128s
sys 0m0.351s
```