[gnumeric] Func: use before delete, even for pointer comparisons.

[Morten Welinder <mortenw src gnome org>]

commit 6671cd9dfeadb67fa1ea87162e35ad9209333e84
Author: Morten Welinder <terra gnome org>
Date:   Thu Jan 10 08:47:25 2013 -0500

    Func: use before delete, even for pointer comparisons.

 src/func.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/func.c b/src/func.c
index d1fcf12..3899d08 100644
--- a/src/func.c
+++ b/src/func.c
@@ -879,9 +879,9 @@ gnm_func_group_remove_func (GnmFuncGroup *fn_group, GnmFunc *fn_def)
 	fn_group->functions = g_slist_remove (fn_group->functions, fn_def);
 	if (fn_group->functions == NULL) {
 		categories = g_list_remove (categories, fn_group);
-		gnm_func_group_free (fn_group);
 		if (unknown_cat == fn_group)
 			unknown_cat = NULL;
+		gnm_func_group_free (fn_group);
 	}
 }