coverity#984094 Uninitialized scalar field

Change-Id: Ied78aaa315da9bbcbd5b26a223f41da4526e2384

hwpfilter/source/hbox.cxx

@@ -76,16 +76,15 @@ hunit HBox::Height(CharShape *csty)
     return( csty->size );
 }
 
-
 // skip block
 SkipData::SkipData(hchar hch)
     : HBox(hch)
     , data_block_len(0)
+    , dummy(0)
     , data_block(0)
 {
 }
 
-
 SkipData::~SkipData(void)
 {
     delete[]data_block;