[recipes] Make filtering translated unit names work

[Matthias Clasen <matthiasc src gnome org>]

commit af21c137230be967a010148996aea62aedbd30e6
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Dec 30 16:01:01 2016 -0500

    Make filtering translated unit names work
    
    This wasn't working because we forgot to case-fold them.

 src/gr-edit-page.c |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)
---
diff --git a/src/gr-edit-page.c b/src/gr-edit-page.c
index 183369e..ed7ae33 100644
--- a/src/gr-edit-page.c
+++ b/src/gr-edit-page.c
@@ -730,14 +730,15 @@ unit_filter_func (GtkListBoxRow *row,
 {
         GrEditPage *self = data;
         const char *unit;
-        const char *cf1, *cf2;
+        g_autofree char *cf1 = NULL;
+        g_autofree char *cf2 = NULL;
 
         if (!self->unit_term)
                 return TRUE;
 
         unit = (const char *)g_object_get_data (G_OBJECT (row), "unit");
-        cf1 = gr_unit_get_abbreviation (unit);
-        cf2 = gr_unit_get_display_name (unit);
+        cf1 = g_utf8_casefold (gr_unit_get_abbreviation (unit), -1);
+        cf2 = g_utf8_casefold (gr_unit_get_display_name (unit), -1);
 
         return g_str_has_prefix (cf1, self->unit_term) ||
                g_str_has_prefix (cf2, self->unit_term);