Fixed empty object output

JsonGenerator/IndentedPrintDecorator.cpp

@@ -11,16 +11,34 @@ size_t IndentedPrintDecorator::write(uint8_t c)
     {
     case '{':
         indent++;
-        return sink.write(c) + writeln();
+        emptyBlock = true;
+        return sink.write(c);
 
     case '}':
         indent--;
+
+        if (emptyBlock)
+        {
+            return sink.write(c);
+        }
+        else
+        {
             return writeln() + sink.write(c);
+        }
 
     default:
+
+        if (emptyBlock)
+        {
+            emptyBlock = false;
+            return writeln() + sink.write(c);
+        }
+        else
+        {
             return sink.write(c);
         }
     }
+}
 
 size_t IndentedPrintDecorator::writeln()
 {

JsonGenerator/IndentedPrintDecorator.h

@@ -13,7 +13,7 @@ class IndentedPrintDecorator : public Print
 public:
 
     IndentedPrintDecorator(Print& p)
-        : indent(0), sink(p)
+        : indent(0), sink(p), emptyBlock(false)
     {
     }
 
@@ -21,6 +21,7 @@ public:
 
 private:
     int indent;
+    bool emptyBlock;
     Print& sink;
 
     size_t writeln();