perl upgrade finds dependency loop

[Scott Bennett]

     Following the instructions from the UPDATING entry from yesterday
(3 November 2016) for using portmaster, I got a dependency loop.  Here
is the last little bit of it when I interrupted it again, after adding
"-x libglade" to try to prevent the loop.  Now I'm thinking that cups
is the port to block instead.

===>>> Forcing update for /usr/ports/print/cups
===>>> Launching child to reinstall cups-2.2.1

===>>> p5-Glade2-1.007_4 1/31 >> gtk2-2.24.29_2 >> cups-2.2.1 >> xdg-utils-1.1.1 >> xmlto-0.0.28 >> w3m-0.5.3_5 >> gtk2-2.24.29_2 >> cups-2.2.1 >> xdg-utils-1.1.1 >> xmlto-0.0.28 >> w3m-0.5.3_5 >> gtk2-2.24.29_2 >> cups-2.2.1 >> xdg-utils-1.1.1 >> xmlto-0.0.28 >> w3m-0.5.3_5 >> gtk2-2.24.29_2 >> cups-2.2.1 >> xdg-utils-1.1.1 >> xmlto-0.0.28 >> w3m-0.5.3_5 >> gtk2-2.24.29_2 >> cups-2.2.1 (25/183)


                                  Scott Bennett, Comm. ASMELG, CFIAG
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