Add `pre-commit` checks

The big ones here are `trim-trailing-whitespace` and `end-of-file-fixer`
(which makes sure that every file ends with exactly one newline
character).

Change-Id: Idca73b640883188f068f9903e013cf0d82aa1123

1 files changed, 12 insertions, 12 deletions

diff --git a/doc/manual/src/release-notes/rl-0.6.md b/doc/manual/src/release-notes/rl-0.6.md
index ed2d21583..7fa0324eb 100644
--- a/doc/manual/src/release-notes/rl-0.6.md
+++ b/doc/manual/src/release-notes/rl-0.6.md
@@ -1,15 +1,15 @@
 # Release 0.6 (2004-11-14)
 
   - Rewrite of the normalisation engine.
-    
+
       - Multiple builds can now be performed in parallel (option `-j`).
-    
+
       - Distributed builds. Nix can now call a shell script to forward
         builds to Nix installations on remote machines, which may or may
         not be of the same platform type.
-    
+
       - Option `--fallback` allows recovery from broken substitutes.
-    
+
       - Option `--keep-going` causes building of other (unaffected)
         derivations to continue if one failed.
 
@@ -28,32 +28,32 @@
   - Manual updates.
 
   - `nix-env` changes:
-    
+
       - Derivations for other platforms are filtered out (which can be
         overridden using `--system-filter`).
-    
+
       - `--install` by default now uninstall previous derivations with
         the same name.
-    
+
       - `--upgrade` allows upgrading to a specific version.
-    
+
       - New operation `--delete-generations` to remove profile
         generations (necessary for effective garbage collection).
-    
+
       - Nicer output (sorted, columnised).
 
   - More sensible verbosity levels all around (builder output is now
     shown always, unless `-Q` is given).
 
   - Nix expression language changes:
-    
+
       - New language construct: `with
                                                         E1;
                                                         E2` brings all attributes defined in the attribute set *E1* in
         scope in *E2*.
-    
+
       - Added a `map` function.
-    
+
       - Various new operators (e.g., string concatenation).
 
   - Expression evaluation is much faster.