[glib-networking] Fix glib-pacrunner.service install dir

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 3dacd738e48c862a064249db377057a0ad45206e
Author: Michael Catanzaro <mcatanzaro igalia com>
Date:   Tue Nov 21 16:50:33 2017 -0600

    Fix glib-pacrunner.service install dir
    
    This should be 'lib', not libdir, because systemd looks for unit files
    under /usr/lib/systemd, not /usr/lib64 and not under multiarch locations.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=790367

 proxy/libproxy/meson.build |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/proxy/libproxy/meson.build b/proxy/libproxy/meson.build
index 0db801a..ff91af4 100644
--- a/proxy/libproxy/meson.build
+++ b/proxy/libproxy/meson.build
@@ -17,7 +17,7 @@ configure_file(
   input: service + '.in',
   output: service,
   install: true,
-  install_dir: join_paths(libdir, 'systemd', 'user'),
+  install_dir: join_paths('lib', 'systemd', 'user'),
   configuration: service_conf
 )