[gedit] Revert "build: try removing submodule init line"

[Jeremy Bicha <jbicha src gnome org>]

commit 74ec97cc793ee1eeb67ccb11fe774034ac456e66
Author: Jeremy Bicha <jbicha ubuntu com>
Date:   Sat Jan 12 20:55:00 2019 -0500

    Revert "build: try removing submodule init line"
    
    This reverts commit a4bc7f32a228efe25a13e01a01d0f7dc560f8ab3.
    
    See https://gitlab.gnome.org/GNOME/gnome-documents/merge_requests/7
    for more explanation.
    
    This wasn't the reason gnome-continuous failed.
    
    Anyway, gnome-continuous works now.

 meson.build | 4 ++++
 1 file changed, 4 insertions(+)
---
diff --git a/meson.build b/meson.build
index 0327dc920..717b0bbb8 100644
--- a/meson.build
+++ b/meson.build
@@ -48,6 +48,10 @@ localdir = join_paths(datadir, 'local')
 vapidir = join_paths(datadir, 'vala', 'vapi')
 
 # Subprojects
+if not get_option('buildtype').contains('plain')
+  run_command('git', '-C', meson.source_root(), 'submodule', 'update', '--init', '--recursive')
+endif
+
 libgd_sp = subproject(
   'libgd',
   default_options: [