Fix uptodate check when using attributes rather than filesets

PR:	16119
Submitted by:	Larry Isaacs


git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@273841 13f79535-47bb-0310-9956-ffa450edef68

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

@@ -203,7 +203,7 @@ public class UpToDate extends Task implements Condition {
         if (_sourceFile != null) {
             if (mapperElement == null) {
                 upToDate = upToDate &&
-                    (_targetFile.lastModified() > _sourceFile.lastModified());
+                    (_targetFile.lastModified() >= _sourceFile.lastModified());
             } else {
                 SourceFileScanner sfs = new SourceFileScanner(this);
                 upToDate = upToDate &&