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(image-jpeg-p): Fix call of substring.
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@ -64,7 +64,7 @@ a non-nil value, TYPE is the image's type ")
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(when (and (>= code #xe0) (<= code #xef))
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;; APP0 LEN1 LEN2 "JFIF\0"
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(throw 'jfif
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(string-match "JFIF" (substring data i nbytes))))
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(string-match "JFIF" (substring data i (+ i nbytes)))))
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(setq i (+ i 1 nbytes))))))))
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