:if ! &ro
:try
  /^# A Perforce Change Spec/,/^$/d

  :set nomod

  :wincmd n
  :wincmd J
  :r!p4 diff
  :1
  :delete

  :setf diff
  :set nomod

  :wincmd k
  /<enter description here>
  :let @/ = ""
:catch
:endtry
:endif