Update to upstream version 4.8.3
Detailed maintainer log:
bmpp modification: /CropBox Previous versions of bmpp only wrote a /MediaBox to PDF output, current versions write a /CropBox too. bmpp modification: /CreationTime and /ModTime Timestamps are included in PDF output.
PR: 218560
Submitted by: takefu@airport.fm (maintainer)
MFH: 2017Q2