More missing constructor initializers found by Coverity.

git-svn-id: https://jsoncpp.svn.sourceforge.net/svnroot/jsoncpp/trunk@241 1f120ed1-78a5-a849-adca-83f0a9e25bb6

src/lib_json/json_writer.cpp

@@ -1,4 +1,4 @@
-// Copyright 2007-2010 Baptiste Lepilleur
+// Copyright 2011 Baptiste Lepilleur
 // Distributed under MIT license, or public domain if desired and
 // recognized in your jurisdiction.
 // See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
@@ -278,6 +278,7 @@ FastWriter::writeValue( const Value &value )
 StyledWriter::StyledWriter()
    : rightMargin_( 74 )
    , indentSize_( 3 )
+   , addChildValues_()
 {
 }
 
@@ -554,6 +555,7 @@ StyledStreamWriter::StyledStreamWriter( std::string indentation )
    : document_(NULL)
    , rightMargin_( 74 )
    , indentation_( indentation )
+   , addChildValues_()
 {
 }