[libgit2-glib] Fix building with meson 0.39.0

[Ignacio Casal Quinteiro <icq src gnome org>]

commit f20fb1593410ede73edce38276161e15dd3ae2a3
Author: Ignacio Casal Quinteiro <icq gnome org>
Date:   Sat Mar 11 23:16:40 2017 +0100

    Fix building with meson 0.39.0

 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 47f0116..d399eb1 100644
--- a/libgit2-glib/meson.build
+++ b/libgit2-glib/meson.build
@@ -189,7 +189,7 @@ libgit2_glib = shared_library('git2-glib-@0@'.format(libgit2_glib_api_version),
   link_args: libgit2_glib_link_args)
 
 # Internal dependency, for tests and benchmarks
-libgit2_glib_inc = include_directories([ meson.current_source_dir(), meson.current_build_dir(), 
meson.build_root(), meson.source_root() ])
+libgit2_glib_inc = include_directories([ '.', '..' ])
 libgit2_glib_dep = declare_dependency(link_with: libgit2_glib,
                                       include_directories: [ libgit2_glib_inc ],
                                       dependencies: platform_deps,