[gnome-software/gnome-3-22] trivial: Fix warning when assigning a char in gs-flatpak

[Kalev Lember <klember src gnome org>]

commit f86d83dfdd762ff782247793d8f3c7359ada19ed
Author: Joaquim Rocha <jrocha endlessm com>
Date:   Wed Oct 26 15:07:15 2016 +0200

    trivial: Fix warning when assigning a char in gs-flatpak
    
    (cherry picked from commit 68bbecdbedbdac87d9ba8e2a4738b09102b0ad6b)

 src/plugins/gs-flatpak.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/plugins/gs-flatpak.c b/src/plugins/gs-flatpak.c
index 390fbe1..7aed759 100644
--- a/src/plugins/gs-flatpak.c
+++ b/src/plugins/gs-flatpak.c
@@ -237,7 +237,7 @@ static void
 gs_flatpak_rescan_installed (GsFlatpak *self, GCancellable *cancellable, GError **error)
 {
        GPtrArray *icons;
-       gchar *fn;
+       const gchar *fn;
        guint i;
        g_autoptr(GFile) path = NULL;
        g_autoptr(GDir) dir = NULL;