[yelp] Refactor for loop to avoid compiler warning

[David King <davidk src gnome org>]

commit e99b5b5644511c86d31ad5cfd57aa7286fafc6e0
Author: David King <amigadave amigadave com>
Date:   Mon Feb 9 21:28:25 2015 +0000

    Refactor for loop to avoid compiler warning

 libyelp/yelp-docbook-document.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/libyelp/yelp-docbook-document.c b/libyelp/yelp-docbook-document.c
index ffa3dae..dafd38b 100644
--- a/libyelp/yelp-docbook-document.c
+++ b/libyelp/yelp-docbook-document.c
@@ -965,7 +965,7 @@ docbook_index_chunk (DocbookIndexData *index)
         index->str = g_string_new ("");
     }
 
-    for (child = index->cur->children; child = child->next; child) {
+    for (child = index->cur->children; child; child = child->next) {
         if (docbook_walk_chunkQ (index->docbook, child, index->depth, index->max_depth)) {
             chunks = g_slist_append (chunks, child);
         }