Update to 5.2.11.  Upstream changes:

As of 5.2.11, Gutenprint no longer supports Macintosh OS X
10.5.

Upstream changes are voluminous and have many details and have
therefore been aggressively summarized.  See NEWS in the sources.

* Changes from 5.2.10

  1) Added support for many following dye sublimation printers.

  2) Enhanced support (and bugfixes) for many dye sublimation
    printers.

  3) Added support for the Datamax-O'Neil PCL printers, the Performance
    series (p1115, p1115s, p1120n, p1125, p1725, h8308) and the
    Datamax-O'Neil Workstation printer.

    Also added common Imperial and Metric label sizes to the Paper
    Selection menu.

  4) Added support for the following Epson inkjet printers:

    EPSON L120
    EPSON L210
    EPSON L1800 (preliminary)

  5) Add support for the following laser printer:

    Kyocera FS-1135MFP

  6) Canon inkjet driver enhancements:

    Added support for many models and multiple enhancements.

  7) Canon inkjet driver bugfixes:

    6.1 Ink compression fixed

    A problem with a new ink level compression added in 5.2.7 had
    affected multiple printer models. The bug has been fixed in the
    present release, thus all modes previously affected should work
    normally.

(gdt)