[gnome-software/wip/rancell/reviews] Coding style changes from review

[Robert Ancell <rancell src gnome org>]

commit dfb83a8e527bef5274caaf5cae0a2f43c2ee84a0
Author: Robert Ancell <robert ancell canonical com>
Date:   Thu Feb 4 16:46:20 2016 +1300

    Coding style changes from review

 src/gs-shell-details.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/gs-shell-details.c b/src/gs-shell-details.c
index d79824d..0897c78 100644
--- a/src/gs-shell-details.c
+++ b/src/gs-shell-details.c
@@ -964,7 +964,7 @@ gs_shell_details_refresh_reviews (GsShellDetails *self)
        gs_container_remove_all (GTK_CONTAINER (self->list_box_reviews));
 
        /* If you haven't reviewed it, do it now */
-       gtk_widget_set_visible (self->button_review, !gs_app_get_self_review (self->app));
+       gtk_widget_set_visible (self->button_review, gs_app_get_self_review (self->app) == NULL);
 
        reviews = gs_app_get_reviews (self->app);
        for (i = 0; i < reviews->len; i++) {