Bug 152560 PDF doesn't display bottom Border in inner group footer properly
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/layout/pdf/PDFTableLM.java
distributeWidth( columns, colNumber, aw);
					}
					else 
					{
						if(colSum<maxWidth)
						{
							int colNumber = columnNumber - columnWithWidth;
							int aw = (maxWidth - colSum)/colNumber;
							distributeWidth( columns, colNumber, aw);
						}
						else
						{
							distributeWidth(columns, columnNumber, specifiedWidth/columnNumber);
						}
					}
					
				}
				
			}
			return columns;
		}
		
		private void distributeWidth(int cols[], int colNumber, int width)
		{
			assert(colNumber<=cols.length);
			if(colNumber==cols.length)
			{
				for(int i=0; i<cols.length; i++)
				{
					cols[i] = width;