[libgit2-glib/wip/meson] build: use join_paths() for consistency

[Igor Gnatenko <ignatenko src gnome org>]

commit bd714e61e4796acd08b363ff9cc4907a6be4d063
Author: Igor Gnatenko <ignatenko src gnome org>
Date:   Fri Feb 10 08:31:07 2017 +0100

    build: use join_paths() for consistency
    
    Signed-off-by: Igor Gnatenko <ignatenko src gnome org>

 libgit2-glib/meson.build |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/libgit2-glib/meson.build b/libgit2-glib/meson.build
index 1514586..5cca8a5 100644
--- a/libgit2-glib/meson.build
+++ b/libgit2-glib/meson.build
@@ -145,7 +145,7 @@ sources = [
 configure_file(input : 'ggit.h.in',
                output : 'ggit.h',
                configuration : ggit_h_data,
-               install_dir: get_option('includedir') + '/libgit2-glib-1.0')
+               install_dir: join_paths(get_option('includedir'), 'libgit2-glib-1.0'))
 
 enum_types = gnome.mkenums('ggit-enum-types',
   sources : headers,