master updated (ec2559e863 -> d1d0f03a58)

[Stefan Kangas]

skangas pushed a change to branch master.

      from  ec2559e863 ; Move the thumbnail file-name entry to its proper place.
      adds  00159c086c ; Add commentary to disabled OTF support code in font.c
      adds  3d056f6947 * doc/emacs/ack.texi (Acknowledgments): Update 
maintainers.
      adds  f9a072c592 ; Fix typo
      adds  c54a64491f Add .mailmap for proper git log output
      adds  72aac80184 ; Fix typo
       new  d1d0f03a58 Merge from origin/emacs-28


Summary of changes:
 .mailmap           | 146 ++++++++++
 doc/emacs/ack.texi |   8 +-
 src/font.c         | 784 +++++++++++++++++++++++++++--------------------------
 3 files changed, 545 insertions(+), 393 deletions(-)
 create mode 100644 .mailmap