[Patch, Fortran] invoke.texi: Be more verbose for -fno-automatic and -fmax-stack-var-size=<n>

[Tobias Burnus]

:ADDPATCH fortran:

While looking at Asher's patch, I looked at gfortran's manpage:

* We never tell what "-fautomatic" does
* We don't reassure the user that -fno-automatic does not affect
procedures marked as RECURSIVE
* We don't point to -fmax-stack-var-size=

And for -fmax-stack-var-size=<n>:
* We don't tell what happens with variables which exceed the
max-stack-var-size
* We don't tell about -fmax-stack-var-size=-1

I therefore would suggest to apply the following patch;
I tested it by creating the info/man and the pdf file.

OK for the trunk?

Tobias

2007-08-16  Tobias Burnus  <burnus@net-b.de>

	* invoke.texi (-fno-automatic,-fmax-stack-var-size):
	  Be more verbose in the description.

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