[libgudev] build: add README, COPYING, NEWS to dist

[Bastien Nocera <hadess src gnome org>]

commit 321afe57d8408d0fd78974d8ec318cef1b8de664
Author: David Herrmann <dh herrmann gmail com>
Date:   Fri May 8 12:23:45 2015 +0200

    build: add README, COPYING, NEWS to dist
    
    Make sure README, COPYING and NEWS are distributed in tarballs.

 Makefile.am |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)
---
diff --git a/Makefile.am b/Makefile.am
index 18822be..79ea2e5 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -9,7 +9,6 @@ lib_LTLIBRARIES =
 noinst_DATA =
 MANPAGES =
 CLEANFILES = $(BUILT_SOURCES)
-EXTRA_DIST =
 BUILT_SOURCES =
 
 GCC_COLORS ?= 'ooh, shiny!'
@@ -28,6 +27,11 @@ AM_MAKEFLAGS = --no-print-directory
 AM_CPPFLAGS =
 AM_CFLAGS =
 
+EXTRA_DIST = \
+       README \
+       COPYING \
+       NEWS
+
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 # Version numbers