Glob: Remove addition of extra '/'

When globing non recursive with for example '/a/*/*' the result
contained '//' instead of a single slash between directories.

Change-Id: I6adb672cde6e327c8fda6e29ff7d3b8ae5c7cb6b

Glob.cxx

@@ -335,7 +335,7 @@ void Glob::ProcessDirectory(kwsys_stl::string::size_type start,
         }
       else
         {
-        this->ProcessDirectory(start+1, realname + "/");
+        this->ProcessDirectory(start+1, realname);
         }
       }
     }