Fix typo in pdfclean that caused a segfault.
Fix typo in pdfclean that caused a segfault.

Ignore-this: 5aa1422cddfb28617e9bf4557fa3d4d9

darcs-hash:20100807142825-86a4e-9d8225d6a0a0f7d2edcfe7587a3aaea50df2fd2c.gz

nqv/mupdf,nqv/mupdf,nqv/mupdf,nqv/mupdf,nqv/mupdf,nqv/mupdf