PR 55835 - log executed build file in subant's verbose mode

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@1547286 13f79535-47bb-0310-9956-ffa450edef68

src/main/org/apache/tools/ant/taskdefs/SubAnt.java

@@ -300,6 +300,9 @@ public class SubAnt extends Task {
         }
 
         try {
+            if (verbose) {
+                log("Executing: " + antfilename, Project.MSG_INFO);
+            }
             ant.execute();
         } catch (BuildException e) {
             if (failOnError || isHardError(e)) {