partial fix for bnc#819865

Imported column widths were wrong because we were iterating
over the wrong column ( due to a typo I guess ) nStartCol -> nCol

Change-Id: I0504bca597eb313c2c28d1a26ca03eec41ebbc34

sc/source/filter/oox/worksheethelper.cxx

@@ -1183,7 +1183,7 @@ void WorksheetGlobals::convertColumns( OutlineLevelVec& orColLevels,
     {
         for( SCCOL nCol = nStartCol; nCol <= nEndCol; ++nCol )
         {
-            rDoc.SetColWidthOnly( nStartCol, nTab, (sal_uInt16)sc::HMMToTwips( nWidth ) );
+            rDoc.SetColWidthOnly( nCol, nTab, (sal_uInt16)sc::HMMToTwips( nWidth ) );
         }
     }