[libgit2-glib] meson: Replace calls to include_directories by strings

[Alberto Fanjul <albfan src gnome org>]

commit eea9e51f36eb3e94155948622cad25ae08353773
Author: Iñigo Martínez <inigomartinez gmail com>
Date:   Wed May 22 10:36:09 2019 +0200

    meson: Replace calls to include_directories by strings
    
    Since meson's 0.50 release, `include_directories` accepts strings
    that are replaced transparently[0].
    
    This is more readable in some cases, so it has been replaced where
    possible.
    
    meson minimum version has also been bumped to 0.50.
    
    [0] http://mesonbuild.com/Release-notes-for-0-50-0.html#include_directories-accepts-a-string

 libgit2-glib/meson.build | 2 +-
 meson.build              | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/libgit2-glib/meson.build b/libgit2-glib/meson.build
index 8851580..49af6c1 100644
--- a/libgit2-glib/meson.build
+++ b/libgit2-glib/meson.build
@@ -228,7 +228,7 @@ pkg.generate(
 libgit2_glib_dep = declare_dependency(
   # Everything that uses libgit2-glib needs this built to compile
   sources: enum_sources[1],
-  include_directories: include_directories('.'),
+  include_directories: '.',
   dependencies: platform_deps,
   link_with: libgit2_glib,
 )
diff --git a/meson.build b/meson.build
index 4dcb95d..5490b0c 100644
--- a/meson.build
+++ b/meson.build
@@ -3,7 +3,7 @@ project(
   version: '1.0.0.1',
   default_options: 'buildtype=debugoptimized',
   license: 'LGPL2+',
-  meson_version: '>= 0.49.0',
+  meson_version: '>= 0.50.0',
 )
 
 libgit2_glib_version = meson.project_version()