added forgotten prefix to aData

Change-Id: I9887b8abcaccec2ec5ea14b3f43375c4b684b5ea
Reviewed-on: https://gerrit.libreoffice.org/66202
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

sw/source/core/bastyp/tabcol.cxx

@@ -76,7 +76,7 @@ void SwTabCols::Insert( long nValue, bool bValue, size_t nPos )
     m_aData.insert( m_aData.begin() + nPos, aEntry );
 
 #if OSL_DEBUG_LEVEL > 1
-    for ( const auto& rPos : aData )
+    for ( const auto& rPos : m_aData )
     {
         aEntry = rPos;
     }