[recipes] Don't crash without cuisines

[Matthias Clasen <matthiasc src gnome org>]

commit 5fdeb2cc941efd5214f7704842f43c17e5ebc11b
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat May 27 11:39:15 2017 -0400

    Don't crash without cuisines
    
    Not great to have no data, but crashing is not an option.

 src/gr-cuisines-page.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/src/gr-cuisines-page.c b/src/gr-cuisines-page.c
index 2900452..82bd073 100644
--- a/src/gr-cuisines-page.c
+++ b/src/gr-cuisines-page.c
@@ -169,6 +169,12 @@ populate_cuisines (GrCuisinesPage *page)
                 g_clear_pointer (&page->featured, g_free);
 
         length = g_strv_length (cuisines);
+
+        if (length == 0) {
+                g_warning ("No cuisines found");
+                return;
+        }
+
         if (!page->featured && length > 0) {
                 int pos;
                 pos = g_random_int_range (0, length);