log exceptions rather than print stack trace

ant/org.eclipse.ant.ui/Ant Tools Support/org/eclipse/ant/internal/ui/AntRunnerWorkbenchAdvisor.java

diff --git a/ant/org.eclipse.ant.ui/Ant Tools Support/org/eclipse/ant/internal/ui/AntRunnerWorkbenchAdvisor.java b/ant/org.eclipse.ant.ui/Ant Tools Support/org/eclipse/ant/internal/ui/AntRunnerWorkbenchAdvisor.java
index c5364f7..8150e8b 100644
--- a/ant/org.eclipse.ant.ui/Ant Tools Support/org/eclipse/ant/internal/ui/AntRunnerWorkbenchAdvisor.java
+++ b/ant/org.eclipse.ant.ui/Ant Tools Support/org/eclipse/ant/internal/ui/AntRunnerWorkbenchAdvisor.java
@@ -43,12 +43,12 @@
 		try {
 			new AntRunner().run(fContext);
 		} catch (Exception e) {
-			e.printStackTrace();
+			AntUIPlugin.log(e);
 		}
 		try {
 			ResourcesPlugin.getWorkspace().save(true, null);
 		} catch (CoreException e) {
-			e.printStackTrace();
+			AntUIPlugin.log(e);
 		}
 	}