Changed "project.name" to "ant.project.name"

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@268245 13f79535-47bb-0310-9956-ffa450edef68

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

@@ -285,7 +285,7 @@ public class Project {
     }
 
     public void setName(String name) {
-        setUserProperty("project.name",  name);
+        setUserProperty("ant.project.name",  name);
         this.name = name;
     }