Prefer C over en_GB for English variants other than en_GB.

--- ../orig/klavaro-1.1.8/src/translation.c	2008-12-24 22:10:22.000000000 +0100
+++ src/translation.c	2008-12-25 11:06:16.000000000 +0100
@@ -151,6 +151,13 @@
 	gint i;
 	gchar aux_code_2[3];
 
+	if (g_str_has_prefix (test, "en"))
+	{
+		g_free (test);
+		test = g_strdup ("C");
+		return (TRUE);
+	}
+
 	if (g_str_equal (test, "C"))
 		return TRUE;