boolean PEAR_PackageUpdate::setDontAskAgain ( 
    boolean $dontAsk
   )
   Sets the user's "Don't Ask Again" preference to
   $dontAsk. If $dontAsk is TRUE
   the user will not be asked to update the package again.
  
since 0.4.0a1
This function can not be called statically.
boolean - TRUE if the preference was set properly, FALSE otherwise.