Roll libxml to 3169602058bd2d04913909e869c61d1540bc7fb4

third_party/libxml/src/relaxng.c

Index: third_party/libxml/src/relaxng.c
diff --git a/third_party/libxml/src/relaxng.c b/third_party/libxml/src/relaxng.c
index 56a3344a2fe1a198d23a11fdf6678b58b6719d85..3d3e69c0e3621b6d044234695bb5f4661b214397 100644
--- a/third_party/libxml/src/relaxng.c
+++ b/third_party/libxml/src/relaxng.c
@@ -2088,6 +2088,7 @@ xmlRelaxNGGetErrorString(xmlRelaxNGValidErr err, const xmlChar * arg1,
                          const xmlChar * arg2)
 {
     char msg[1000];
+    xmlChar *result;
 
     if (arg1 == NULL)
         arg1 = BAD_CAST "";
@@ -2215,7 +2216,7 @@ xmlRelaxNGGetErrorString(xmlRelaxNGValidErr err, const xmlChar * arg1,
         snprintf(msg, 1000, "Unknown error code %d\n", err);
     }
     msg[1000 - 1] = 0;
-    xmlChar *result = xmlCharStrdup(msg);
+    result = xmlCharStrdup(msg);
     return (xmlEscapeFormatString(&result));
 }