the 'port deps installed' script is putting out dupes

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For example:

fping has build dependencies on:

automake libtool

fping has library dependencies on:

expat freetype

freetype has build dependencies on:

automake libtool

freetype has library dependencies on:

zlib

freetype has build dependencies on:

automake libtool

freetype has library dependencies on:

zlib

gd2 has build dependencies on:

automake libtool

gd2 has library dependencies on:

libpng jpeg freetype XFree86

Notice that the freetype library dependencies are listed and then the build dependencies are listed. And then both of them are listed again....