ports/107837: fix dependency of print/pdftk

[Tsurutani Naoki]

Hello,

I missed to fix about LIB_DEPENDS.
 LIB_DEPENDS=	gcj.7:${PORTSDIR}/lang/gcc${CSUFF}
should be changed to 
 LIB_DEPENDS=	gcj:${PORTSDIR}/lang/gcc${CSUFF}
to remove dependence specific to gcc41.
I am very sorry to bother you.  Please fix it.

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Tsurutani Naoki
turutani at scphys.kyoto-u.ac.jp