normalize build file name. In essence, turn relative file names given on the command line into absolute ones. Submitted by: Justin Vallon. PR: 44323

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@633480 13f79535-47bb-0310-9956-ffa450edef68

src/main/org/apache/tools/ant/Main.java

@@ -420,6 +420,10 @@ public class Main implements AntMain {
             throw new BuildException("Build failed");
         }
 
+        // Normalize buildFile for re-import detection
+        buildFile =
+            FileUtils.getFileUtils().normalize(buildFile.getAbsolutePath());
+
         // Load the property files specified by -propertyfile
         loadPropertyFiles();