Version bump

changelog.md

 # Changelog for [`process` package](http://hackage.haskell.org/package/process)
 
-## Unreleased changes
+## 1.6.5.0 *December 2018*
 
 * Bug fix: On Windows ignore ERROR_ACCESS_DENIED for TerminateProcess() if the process did terminate
   [#110](https://github.com/haskell/process/issues/110)
+* Improve documentation of the `NoStream` data constructor
 
 ## 1.6.4.0 *July 2018*
 

process.cabal

 name:          process
-version:       1.6.4.0
+version:       1.6.5.0
 -- NOTE: Don't forget to update ./changelog.md
 license:       BSD3
 license-file:  LICENSE