Update libxml to 2.7.7.

third_party/libxml/debugXML.c

Index: third_party/libxml/debugXML.c
diff --git a/third_party/libxml/debugXML.c b/third_party/libxml/debugXML.c
index de6fd6c7623ce5a3b3efd6505daef5ce3e23fca6..415889a657ee0b76e3b3f9e510469a2a6ef91632 100644
--- a/third_party/libxml/debugXML.c
+++ b/third_party/libxml/debugXML.c
@@ -141,9 +141,9 @@ xmlCtxtDumpSpaces(xmlDebugCtxtPtr ctxt)
         return;
     if ((ctxt->output != NULL) && (ctxt->depth > 0)) {
         if (ctxt->depth < 50)
-            fprintf(ctxt->output, &ctxt->shift[100 - 2 * ctxt->depth]);
+            fprintf(ctxt->output, "%s", &ctxt->shift[100 - 2 * ctxt->depth]);
         else
-            fprintf(ctxt->output, ctxt->shift);
+            fprintf(ctxt->output, "%s", ctxt->shift);
     }
 }
 
@@ -162,7 +162,7 @@ xmlDebugErr(xmlDebugCtxtPtr ctxt, int error, const char *msg)
 		    NULL, ctxt->node, XML_FROM_CHECK,
 		    error, XML_ERR_ERROR, NULL, 0,
 		    NULL, NULL, NULL, 0, 0,
-		    msg);
+		    "%s", msg);
 }
 static void
 xmlDebugErr2(xmlDebugCtxtPtr ctxt, int error, const char *msg, int extra)
@@ -259,7 +259,9 @@ xmlCtxtCheckName(xmlDebugCtxtPtr ctxt, const xmlChar * name)
 			 "Name is not an NCName '%s'", (const char *) name);
 	}
 	if ((ctxt->dict != NULL) &&
-	    (!xmlDictOwns(ctxt->dict, name))) {
+	    (!xmlDictOwns(ctxt->dict, name)) &&
+            ((ctxt->doc == NULL) ||
+             ((ctxt->doc->parseFlags & (XML_PARSE_SAX1 | XML_PARSE_NODICT)) == 0))) {
 	    xmlDebugErr3(ctxt, XML_CHECK_OUTSIDE_DICT,
 			 "Name is not from the document dictionnary '%s'",
 			 (const char *) name);
@@ -2801,7 +2803,6 @@ xmlShell(xmlDocPtr doc, char *filename, xmlShellReadlineFunc input,
 {
     char prompt[500] = "/ > ";
     char *cmdline = NULL, *cur;
-    int nbargs;
     char command[100];
     char arg[400];
     int i;
@@ -2853,7 +2854,6 @@ xmlShell(xmlDocPtr doc, char *filename, xmlShellReadlineFunc input,
          * Parse the command itself
          */
         cur = cmdline;
-        nbargs = 0;
         while ((*cur == ' ') || (*cur == '\t'))
             cur++;
         i = 0;
@@ -2866,7 +2866,6 @@ xmlShell(xmlDocPtr doc, char *filename, xmlShellReadlineFunc input,
         command[i] = 0;
         if (i == 0)
             continue;
-        nbargs++;
 
         /*
          * Parse the argument
@@ -2880,8 +2879,6 @@ xmlShell(xmlDocPtr doc, char *filename, xmlShellReadlineFunc input,
             arg[i++] = *cur++;
         }
         arg[i] = 0;
-        if (i != 0)
-            nbargs++;
 
         /*
          * start interpreting the command