fix typo in pdfimages.1
Fix typo
0.24.1
pdfimages: support cmyk tiff output

If -tiff is specified, CMYK images will be written as CMYK TIFF files
instead of converting to RGB. If both -png and -tiff are specified (as
is the case with the -all option), CMYK images are written as TIFF and
all other types as PNG.
Make cpp/poppler-image.cc use goo/NetPBMWriter
pdfimages: ensure dump* variables are intialized
pdfimages.1: fix typo
pdfseparate: improve the path building

Make use of snprintf to limit the output to the pathName buffer;
while I'm there, expand its size to 4096 (might help longer paths),
although a better fix would be dynamically allocate its length
(and/or using GooString, maybe).
Merge remote-tracking branch 'origin/poppler-0.24'

Conflicts:
	utils/pdfimages.1