How to enable hooks?

Hello users,

  After I copied 'pre-revprop-change.tmpl' -> 'pre-revprop-change' in
  repository folder 'hooks/' and get error:
  ------------
  'pre-revprop-change' hook failed with error output:

  ------------

  Repository on FreeBSD, accessing through 'svn://', version -- 1.0.5
  (r9954)
  
  PS: I tried to play with file 'pre-revprop-change' like making it
  executeble, clearing its content, write "exit 0" and so on, but
  it's all the same...

  What can I do to enable changing log message?

-- 
Best regards,
 Dzmitry                          mailto:trigger@tut.by
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