[polari] util: Casefold basenick

[Florian Müllner <fmuellner src gnome org>]

commit 7d6a7dbfba63e2ee3cbfdf1a2284bb1748de7bf1
Author: Florian Müllner <fmuellner gnome org>
Date:   Mon Feb 8 19:33:51 2016 +0100

    util: Casefold basenick
    
    The purpose of "basenicks" is to group different nicks that supposedly
    identify the same person - it makes sense to not only apply this to
    different suffixes, but also differences in case.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=761723

 src/lib/polari-util.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/lib/polari-util.c b/src/lib/polari-util.c
index 4da11ba..93f5141 100644
--- a/src/lib/polari-util.c
+++ b/src/lib/polari-util.c
@@ -37,7 +37,7 @@ polari_util_get_basenick (const char *nick)
     ;
 
   if (len > 0)
-    return g_strndup (nick, len);
+    return g_utf8_casefold (nick, len);
   else
-    return g_strdup (nick);
+    return g_utf8_casefold (nick, -1);
 }