[libxslt] Fix unreachable code in xsltAddChild

[Nick Wellnhofer <nwellnhof src gnome org>]

commit ca99e1d41f970d8499b3cb0faf36282c064cabfa
Author: mahendra.n <mahendra n samsung com>
Date:   Wed Jul 13 13:04:47 2016 +0200

    Fix unreachable code in xsltAddChild
    
    Might also fix a memory leak in error cases.
    
    Fixes bug #760113:
    https://bugzilla.gnome.org/show_bug.cgi?id=760113

 libxslt/transform.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/libxslt/transform.c b/libxslt/transform.c
index cd93bd0..b3fce80 100644
--- a/libxslt/transform.c
+++ b/libxslt/transform.c
@@ -785,7 +785,7 @@ static xmlNodePtr
 xsltAddChild(xmlNodePtr parent, xmlNodePtr cur) {
    xmlNodePtr ret;
 
-   if ((cur == NULL) || (parent == NULL))
+   if (cur == NULL)
        return(NULL);
    if (parent == NULL) {
        xmlFreeNode(cur);