[sushi] sushi-pdf-loader: silence terminal output

[Cosimo Cecchi <cosimoc src gnome org>]

commit 033a522db089cffb3de9a23f078cd3895f747f78
Author: Cosimo Cecchi <cosimo endlessm com>
Date:   Fri Apr 20 11:21:04 2018 -0700

    sushi-pdf-loader: silence terminal output
    
    Do not spam output while checking whether LibreOffice flatpak is
    installed.

 src/libsushi/sushi-pdf-loader.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)
---
diff --git a/src/libsushi/sushi-pdf-loader.c b/src/libsushi/sushi-pdf-loader.c
index d2083cb..7f13f8c 100644
--- a/src/libsushi/sushi-pdf-loader.c
+++ b/src/libsushi/sushi-pdf-loader.c
@@ -172,7 +172,10 @@ check_libreoffice_flatpak (SushiPdfLoader *self,
   self->priv->checked_libreoffice_flatpak = TRUE;
 
   ret = g_spawn_sync (NULL, (gchar **) check_argv, NULL,
-                      G_SPAWN_DEFAULT, NULL, NULL,
+                      G_SPAWN_DEFAULT |
+                      G_SPAWN_STDERR_TO_DEV_NULL |
+                      G_SPAWN_STDOUT_TO_DEV_NULL,
+                      NULL, NULL,
                       NULL, NULL,
                       &exit_status, &error);