John Cupitt a1505c6f72 add stdin, stdout to vipsthumbnail
eg.

	vipsthumbnail stdin[page=2] -o .jpg[Q=90]

mirror of syntax in new_from_file etc.
2020-10-02 16:46:03 +01:00
..
2011-04-06 12:06:32 +01:00
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2011-04-06 12:06:32 +01:00
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