[libxml2] Fix order of root nodes

[Nick Wellnhofer <nwellnhof src gnome org>]

commit ba58f23c60862f2158b457f4d30031761bf4dde1
Author: Nick Wellnhofer <wellnhofer aevum de>
Date:   Sun Mar 8 16:44:11 2015 +0100

    Fix order of root nodes
    
    Make sure root nodes are sorted before other nodes.

 xpath.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/xpath.c b/xpath.c
index ffd2a48..e9f5bf9 100644
--- a/xpath.c
+++ b/xpath.c
@@ -361,13 +361,13 @@ turtle_comparison:
     /*
      * compute depth to root
      */
-    for (depth2 = 0, cur = node2;cur->parent != NULL;cur = cur->parent) {
+    for (depth2 = 0, cur = node2; cur != NULL; cur = cur->parent) {
        if (cur == node1)
            return(1);
        depth2++;
     }
     root = cur;
-    for (depth1 = 0, cur = node1;cur->parent != NULL;cur = cur->parent) {
+    for (depth1 = 0, cur = node1; cur != NULL; cur = cur->parent) {
        if (cur == node2)
            return(-1);
        depth1++;