[O] Difference :header-args: and :header-args+:?

[Rainer M Krug]

Hi

I have a question concerning the property :header-args:. In addition
to :header-args: there is also :header-args+:.


1) If I set some properties globally and in a subtree I want to *add* a
*new* header argument - do I have to use the + or not?

2) If I set some properties globally and in a subtree I want to *change*
a *single* header argument which *was set globally* - do I have to use
the + or not?

I am asking, because the + version is not mentioned in the manual and I
have the feeling there are some inconsistencies, but I want to confirm
if I understand this correctly before reporting these.

Thanks,

Rainer

-- 
Rainer M. Krug
email: Rainer<at>krugs<dot>de
PGP: 0x0F52F982

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