setting EMACS_PORT_NAME=emacs22 forks make infinitely at the port registration step

[Sergey Matveychuk]

Andrey Slusar wrote:
> See this PR:
> 
> http://www.freebsd.org/cgi/query-pr.cgi?pr=ports/95238
> 

Well, it was a long standing bug, but fixed with the lask kris' commit
to bsd.port.mk.

Andrey, I have to remind you, the 'Using Emacs' section still empty in
TPH. At least a couple lines should be there.

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