Merge branch '3.3-maint'

* 3.3-maint:
  Prepare for v3.3.6

diff --cc NEWS.txt
index f6b3fd8743995896803abfa7cd89918998be57f3,7c6f042bb58463b1057950cc8d3ed24893260008..1b94f119afa9f4c23ea8ab450c180cb5f1aedc10
--- 1/NEWS.txt
--- 2/NEWS.txt
+++ b/NEWS.txt
@@@ -1,42 -1,9 +1,42 @@@
  ccache news
  ===========
  
 +ccache 3.4
 +----------
 +Unreleased
 +
 +New features and improvements
 +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 +
 +- The compiler option form `--sysroot arg` is now handled like the documented
 +  `--sysroot=arg` form.
 +
 +- Added support for caching `.su` files generated by GCC flag `-fstack-usage`.
 +
 +- Configuration errors are now treated as warnings instead of fatal errors.
 +
 +- ccache should now work with distcc's ``pump'' wrapper.
 +
 +- The optional unifier is no longer disabled when the direct mode is enabled.
 +
 +- Added support for nvcc compiler options `--compiler-bindir/-ccbin`,
 +  `--output-directory/-odir` and `--libdevice-directory/-ldir`.
 +
 +
 +Bug fixes
 +~~~~~~~~~
 +
 +- File size and number counters are now updated correctly when files are
 +  overwritten in the cache, e.g. when using `CCACHE_RECACHE`.
 +
 +- Force run_second_cpp for nvcc.
 +
 +- Fixed how the nvcc options `-optf` and `-odir` are handled.
 +
 +
  ccache 3.3.6
  ------------
- Unreleased
+ Release date: 2018-01-28
  
  New features and improvements
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~