Made text alignment code executed only once, as intended.

git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/branches/fop-0_20_2-maintain@196443 13f79535-47bb-0310-9956-ffa450edef68

src/org/apache/fop/layout/LineArea.java

@@ -514,6 +514,7 @@ public class LineArea extends Area {
                 MessageHandler.errorln("bad align: "+textAlign);
             break;
             }
+            aligned = true;
         }
         renderer.renderLineArea(this);
     }