Comment # 41 on bug 110214 from Diego Viola

$ git bisect good
6328536ff28ca26f2ad4e6f2c956c467acebda88 is the first bad commit
commit 6328536ff28ca26f2ad4e6f2c956c467acebda88
Author: Eric Anholt <eric@anholt.net>
Date:   Fri Nov 2 14:35:06 2018 -0700

    gbm: Introduce a helper function for printing GBM format names.

    This requires that the caller make a little (stack) allocation to store
    the string.

    v2: Use gbm_format_canonicalize (suggested by Daniel)

    Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
    Reviewed-by: Daniel Stone <daniels@collabora.com>

:040000 040000 033db8e2d54ead2f34691e6b8e234a06428381fd
50d5e1cbd57b488d0e24fd86787c611bf58bd588 M      src