Bug 198994 PDF border crossed at zoom factor such as 100%, 134% etc
PDF border crossed at zoom factor such as 100%, 134%. Need enhance the border appearance in PDF report.
engine/org.eclipse.birt.report.engine.emitter.pdf/src/org/eclipse/birt/report/engine/emitter/pdf/PDFPage.java
/**
	 * Draws a line with the line-style specified in advance from the start
	 * position to the end position with the given linewidth, color, and style
	 * at the given pdf layer. If the line-style is NOT set before invoking this
	 * method, "solid" will be used as the default line-style.
	 * 
	 * @param startX
	 *            the start X coordinate of the line.
	 * @param startY
	 *            the start Y coordinate of the line.
	 * @param endX
	 *            the end X coordinate of the line.
	 * @param endY
	 *            the end Y coordinate of the line.
	 * @param width
	 *            the lineWidth
	 * @param color
	 *            the color of the line.
	 * @param lineStyle
	 *            the style of the line.
	 */
	protected void drawLine( float startX, float startY, float endX, float endY,
			float width, Color color, String lineStyle )
	{
		
		
		if ( null == color || 0f == width
				|| "none".equalsIgnoreCase( lineStyle ) ) 
		{
			return;