Wrong block opening in htmlNodeDumpOutputInternal

* xmlsave.c: Jim Meyering ran clang on libxml2 and this is one of
  the error found, misplaced curly brace
diff --git a/xmlsave.c b/xmlsave.c
index 53b23e6..c2760a8 100644
--- a/xmlsave.c
+++ b/xmlsave.c
@@ -690,8 +690,8 @@
 
     xmlInitParser();
 
-    doc = cur->doc; {
-    if (doc != NULL)
+    doc = cur->doc;
+    if (doc != NULL) {
         oldenc = doc->encoding;
 	if (ctxt->encoding != NULL) {
 	    doc->encoding = BAD_CAST ctxt->encoding;