lang/elixit: Update to 1.6.2.

1. Enhancements

Mix
- [mix compile.erlang] Teach Mix erlang compiler alternative spelling
  for -behavior declaration
- [mix format] Support the :subdirectories configuration that points
  to other directories with their own .formatter.exs file. This is
  useful in umbrella applications. mix new --umbrella has also been
  changed to use this new configuration by default
- [mix format] Include the current environment for missing dependency
  errors

2. Bug fixes

Elixir
- [Code.Formatter] Ensure -> does not exceed line length
- [DynamicSupervisor] Properly tag error reports generated by dynamic
  supervisors so they can be properly translated by Logger
- [DynamicSupervisor] Consider extra arguments during child restart
- [Kernel] Ensure arguments given to a guard defined with defguard are
  evaluated in the correct order
- [Module] Do not remove docs for previous function declaration when
  @impl true is used
- [Supervisor] Ensure use Supervisor properly adds the @behaviour
  Supervisor annotation

Mix
- [Mix.Shell] Bring back Mix.Shell.cmd/2 - this arity was defined via
  a default argument that was accidentally removed

lang/elixir/Makefile

@@ -1,6 +1,6 @@
-# $NetBSD: Makefile,v 1.3 2018/01/30 16:27:10 fhajny Exp $
+# $NetBSD: Makefile,v 1.4 2018/02/28 15:14:02 fhajny Exp $
 
-DISTNAME=		elixir-1.6.1
+DISTNAME=		elixir-1.6.2
 CATEGORIES=		lang
 MASTER_SITES=		${MASTER_SITE_GITHUB:=elixir-lang/}
 

lang/elixir/distinfo

@@ -1,7 +1,7 @@
-$NetBSD: distinfo,v 1.3 2018/01/30 16:27:10 fhajny Exp $
+$NetBSD: distinfo,v 1.4 2018/02/28 15:14:02 fhajny Exp $
 
-SHA1 (elixir-1.6.1.tar.gz) = de6ccdd5a5d93b3c8fd398644a50df403f4a50e2
-RMD160 (elixir-1.6.1.tar.gz) = b3ece07276702a908d4b9451d035bd9a397126ec
-SHA512 (elixir-1.6.1.tar.gz) = db7d3c8b2561e70e0efc44a6ec05428cc085f35d294845546cecb8f7a3c8e63008c666ca14191238728da725e98820315cf2b6abcb7ffdec640fe305926c53ec
-Size (elixir-1.6.1.tar.gz) = 2068820 bytes
+SHA1 (elixir-1.6.2.tar.gz) = 5c758abec24ba68a2f87e734fa825223928aac78
+RMD160 (elixir-1.6.2.tar.gz) = e4348723bf2935712274e916979aea1d08681c2c
+SHA512 (elixir-1.6.2.tar.gz) = de94d90b3fa192d572a3adb83207003d353c494943ca96446e0bcf351480a4e8871c976e6decc6b28f0327a6b64cc5ff128085bea3121ad038378c798aa18bdb
+Size (elixir-1.6.2.tar.gz) = 2072469 bytes
 SHA1 (patch-Makefile) = 10df6513be32d9ef5e62e89d80df917c4fb669a1