Fix erroneous test on language id in FcLangSetPromote()

FcLangSetIndex() indicates "not found" with a non-negative return value.
Return value 0 doesn't imply "not found", it rather means "language
found at index 0 in fcLangCharSets".

1 files changed, 1 insertions, 1 deletions

diff --git a/src/fclang.c b/src/fclang.c
index 19f3ddd4..dbbe7216 100644
--- a/src/fclang.c
+++ b/src/fclang.c
@@ -732,7 +732,7 @@ FcLangSetPromote (const FcChar8 *lang, FcValuePromotionBuffer *vbuf)
     if (lang)
     {
 	id = FcLangSetIndex (lang);
-	if (id > 0)
+	if (id >= 0)
 	{
 	    FcLangSetBitSet (&buf->ls, id);
 	}