patch from 'Hug Me'

sesman/env.c

@@ -100,9 +100,10 @@ env_set_user(char* username, char* passwd_file, int display)
       {
         if (0 == g_cfg.auth_file_path)
         {
-          /* if no auth_file_path is set, then we go for $HOME/.vnc/sesman_passwd */
+          /* if no auth_file_path is set, then we go for
+             $HOME/.vnc/sesman_username_passwd */
           g_mkdir(".vnc");
-          g_sprintf(passwd_file, "%s/.vnc/sesman_passwd", pw_dir);
+          g_sprintf(passwd_file, "%s/.vnc/sesman_%s_passwd", pw_dir, username);
         }
 	else
 	{