Roll libxml to bdec2183f34b37ee89ae1d330c6ad2bb4d76605f

third_party/libxml/src/error.c

 /*
  * error.c: module displaying/handling XML parser errors
  *
  * See Copyright for the status of this software.
  *
  * Daniel Veillard <daniel@veillard.com>
  */
 
 #define IN_LIBXML
 #include "libxml.h"
 
 #include <string.h>
 #include <stdarg.h>
 #include <libxml/parser.h>
 #include <libxml/xmlerror.h>
 #include <libxml/xmlmemory.h>
 #include <libxml/globals.h>
 
 void XMLCDECL xmlGenericErrorDefaultFunc        (void *ctx ATTRIBUTE_UNUSED,
                                  const char *msg,
-                                 ...);
+                                 ...) LIBXML_ATTR_FORMAT(2,3);
 
 #define XML_GET_VAR_STR(msg, str) {                             \
     int       size, prev_size = -1;                             \
     int       chars;                                            \
     char      *larger;                                          \
     va_list   ap;                                               \
                                                                 \
     str = (char *) xmlMalloc(150);                              \
     if (str != NULL) {                                          \
                                                                 \
@@ skipping 957 matching lines @@
     to->file = file;
     to->str1 = str1;
     to->str2 = str2;
     to->str3 = str3;
 
     return 0;
 }
 
 #define bottom_error
 #include "elfgcchack.h"