[libpeas/wip/hadess/fix-libpeas-gtk-pc-includedir-2] build: Fix includedir in libpeas-gtk pkgconfig Cflags again

[Bastien Nocera <hadess src gnome org>]

commit 68b102cf62c1bb39e70b061a660ac0a51bee4068
Author: Bastien Nocera <hadess hadess net>
Date:   Tue Aug 6 12:56:08 2019 +0200

    build: Fix includedir in libpeas-gtk pkgconfig Cflags again
    
    The PeasGtk-1.0.gir refers to <c:include
    name="libpeas-gtk/peas-gtk.h"/>, so the Cflags should be the same as in
    libpeas-1.0.pc:
     --Cflags: -I${includedir}/libpeas-1.0
    
    Fixes: 9dbaa55

 libpeas-gtk/meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/libpeas-gtk/meson.build b/libpeas-gtk/meson.build
index 5de50b4..edfb2de 100644
--- a/libpeas-gtk/meson.build
+++ b/libpeas-gtk/meson.build
@@ -116,6 +116,6 @@ libpeas_gtk_pc = pkg.generate(
   libpeas_gtk_sha,
   name: package_gtk_string,
   description: 'GObject plugins library widgetery',
-  subdirs: join_paths(package_string, package_gtk_name),
+  subdirs: package_string,
   install_dir: pkgconfigdir,
 )