[libsoup] autotools: Add po/meson.build to distributable files

[Claudio Saavedra <csaavedra src gnome org>]

commit 9667fc411418967919753e2fd3390219ed5c1bf6
Author: Claudio Saavedra <csaavedra igalia com>
Date:   Thu Aug 16 09:37:03 2018 +0300

    autotools: Add po/meson.build to distributable files
    
    https://gitlab.gnome.org/GNOME/libsoup/issues/6

 Makefile.am | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/Makefile.am b/Makefile.am
index fea8b651..b2fcfafd 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -14,6 +14,7 @@ EXTRA_DIST =                          \
        Makefile.glib                   \
        meson.build                     \
        meson_options.txt               \
+       po/meson.build                  \
        get_apache_module_dirs.py       \
        config.h.win32