Add comment explaining why patch is still needed (#3054)
Add comment explaining why patch is still needed (#3054)

[The fix](https://github.com/golang/go/issues/17986) for the small buglet addressed by `misc-cgo-testcshared.patch` has been merged into the tree a while back.  I was surprised to see that it wasn't in 1.7.5 and did a bit of digging.  It is *has not* been merged into the 1.7 branch but it *has* been merged into 1.8 (and therefor the patch will no longer be necessary).

Figured I'd document my digging for the next person to come along.
EmreAtes/spack,krafczyk/spack,TheTimmy/spack,mfherbst/spack,mfherbst/spack,lgarren/spack,tmerrick1/spack,TheTimmy/spack,lgarren/spack,krafczyk/spack,TheTimmy/spack,krafczyk/spack,tmerrick1/spack,iulian787/spack,iulian787/spack,lgarren/spack,skosukhin/spack,mfherbst/spack,krafczyk/spack,skosukhin/spack,matthiasdiener/spack,TheTimmy/spack,matthiasdiener/spack,lgarren/spack,skosukhin/spack,EmreAtes/spack,iulian787/spack,iulian787/spack,matthiasdiener/spack,iulian787/spack,tmerrick1/spack,LLNL/spack,LLNL/spack,EmreAtes/spack,mfherbst/spack,skosukhin/spack,mfherbst/spack,tmerrick1/spack,lgarren/spack,matthiasdiener/spack,LLNL/spack,tmerrick1/spack,EmreAtes/spack,krafczyk/spack,LLNL/spack,matthiasdiener/spack,skosukhin/spack,EmreAtes/spack,LLNL/spack,TheTimmy/spack