[commit: ghc] wip/nfs-locking: Add a note on --progress-colour (ffcc3d9)

[git at git.haskell.org]

Repository : ssh://git@git.haskell.org/ghc

On branch  : wip/nfs-locking
Link       : http://ghc.haskell.org/trac/ghc/changeset/ffcc3d939e3854b8f7041814cb6d64761cf59822/ghc

>---------------------------------------------------------------

commit ffcc3d939e3854b8f7041814cb6d64761cf59822
Author: Andrey Mokhov <andrey.mokhov at gmail.com>
Date:   Sat May 21 00:41:58 2016 +0100

    Add a note on --progress-colour
    
    [skip ci]


>---------------------------------------------------------------

ffcc3d939e3854b8f7041814cb6d64761cf59822
 README.md | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/README.md b/README.md
index fdbdbc5..9e7c6ca 100644
--- a/README.md
+++ b/README.md
@@ -58,6 +58,11 @@ profiling, which speeds up builds by 3-4x).
 
 * `--haddock`: build Haddock documentation.
 
+* `--progress-colour=MODE`: choose whether to use colours when printing build progress
+info. There are three settings: `never` (do not use colours), `auto` (attempt to detect
+whether the console supports colours; this is the default setting), and `always` (use
+colours).
+
 * `--progress-info=STYLE`: choose how build progress info is printed. There are four
 settings: `none`, `brief` (one line per build command), `normal` (typically a box per
 build command; this is the default setting), and `unicorn` (when `normal` just won't do).