what I called extraneous braces

A few days ago I pointed out that someone's code for unsetting a 
variable unconditionally,

  :0
  { varname }

was unnecessary, and that just

  varname

alone would do it.

Ah, the irony.  One site where I use procmail has this nasty syntax 
checker that reviews the .procmailrc every time you edit it, and it 
doesn't grok

  varname

as a way to unset a variable and rejects it as an error, making you 
re-edit.  But it doesn't parse what's inside braces, so

  :0
  { varname }

goes under its radar.

Maybe I should just enclose my entire .procmailrc there in

  :0
  {

and

  }

and get the syntax checker off my back permanently.

[It does tolerate

  varname=''
or
  varname=""

but I wasn't about to give into it.  And what if it really mattered to 
have it unset and not just null?]


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