oops, forgot the slashes themselves ;-)

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@18258 71c3de6d-444a-0410-be80-ed276b4c234a

core/src/main/java/hudson/scm/browsers/Sventon2.java

@@ -115,9 +115,21 @@ public class Sventon2 extends SubversionRepositoryBrowser {
         throws UnsupportedEncodingException
     {
         StringBuilder buf = new StringBuilder( );
+        if (path.startsWith("/")) {
+            buf.append('/');
+        }
+        boolean first = true;
         for (String pathElement: path.split( "/" )) {
+            if (first) {
+                first = false;
+            } else {
+                buf.append('/');
+            }
             buf.append(URLEncoder.encode(pathElement, URL_CHARSET));
         }
+        if (path.endsWith("/")) {
+           buf.append('/');
+        }
         return buf.toString();
     }