doc: use pure environment when building from git
authorGiovanni Biscuolo <g@xelera.eu>
Wed, 15 May 2019 08:28:40 +0000 (10:28 +0200)
committerLudovic Courtès <ludo@gnu.org>
Mon, 20 May 2019 21:23:01 +0000 (23:23 +0200)
commit43ec98ef3025f67ff4f66b7da0bcb79a6f088042
treecb3b09b237a802434405a5737ab1eb398ff3c9ed
parenta90157472740b45be23df86341449eb75ff51168
doc: use pure environment when building from git

* doc/contributing.texi (Building from Git): Add --pure to "guix environment"
  invocations

Signed-off-by: Ludovic Courtès <ludo@gnu.org>
doc/contributing.texi