Tweak further the indices checked for break, also tweak test document

<sigh> pagebreak implementation is still flawed here, the used
range is used to determine whether the page break should be
considered ( or not ) Problem is that it is not the used
range but rather the rightmost column position that contains content
( but not necessarily the column that contains content but rather
the righmost column that has content ( or even that is covered either
by spillover from an adjacent column or drawing )

Change-Id: I68c8ccc5911049bc4b2076992f839bc684d966a9

sc/source/ui/vba/vbapagebreaks.cxx

@@ -49,7 +49,7 @@ public:
     sal_Int32 getAPIEndIndexofRange( const uno::Reference< excel::XRange >& xRange, sal_Int32 nUsedStart ) throw (uno::RuntimeException)
     {
         if( m_bColumn )
-            return nUsedStart + xRange->Columns( uno::Any() )->getCount();
+            return nUsedStart + xRange->Columns( uno::Any() )->getCount() - 1;
         return nUsedStart + xRange->Rows( uno::Any() )->getCount();
     }
 
@@ -107,7 +107,7 @@ sal_Int32 SAL_CALL RangePageBreaks::getCount(  ) throw (uno::RuntimeException)
     for( sal_Int32 i=0; i<nLength; i++ )
     {
         sal_Int32 nPos = aTablePageBreakData[i].Position;
-        if( nPos > nUsedEnd + 1 )
+        if( nPos > nUsedEnd + 1)
             return nCount;
         nCount++;
     }