more alarmist warning if launcher jar is missing. PR 34505.

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@710055 13f79535-47bb-0310-9956-ffa450edef68

src/script/runant.py

@@ -64,7 +64,7 @@ if not JAVACMD:
 
 launcher_jar = os.path.join(ANT_LIB, 'ant-launcher.jar')
 if not os.path.exists(launcher_jar):
-    print 'Unable to locate ant-launcher.jar. Expected to find it in %s' % \
+    print 'Warning: Unable to locate ant-launcher.jar. Expected to find it in %s' % \
         ANT_LIB
 
 # Build up standard classpath (LOCALCLASSPATH)