[libxml2] htmlCheckEncoding doesn't update input-end after shrink

[Daniel Veillard <veillard src gnome org>]

commit 1e60fbcb6ff7a054de9dc6bc05aaf01172ad3a6f
Author: Eugene Pimenov <libc me com>
Date:   Wed Mar 10 18:10:49 2010 +0100

    htmlCheckEncoding doesn't update input-end after shrink
    
    * HTMLparser.c: add the missing update to the end pointer

 HTMLparser.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/HTMLparser.c b/HTMLparser.c
index 3d4831c..da3b173 100644
--- a/HTMLparser.c
+++ b/HTMLparser.c
@@ -3478,6 +3478,8 @@ htmlCheckEncoding(htmlParserCtxtPtr ctxt, const xmlChar *attvalue) {
 	    }
 	    ctxt->input->base =
 	    ctxt->input->cur = ctxt->input->buf->buffer->content;
+            ctxt->input->end =
+                          &ctxt->input->base[ctxt->input->buf->buffer->use];
 	}
     }
 }