Warning after pulling from upstream to commit 197a19ad

0:13.50 /home/achronop/myrepos/mozilla/firefox/third_party/dav1d/src/lib.c:270:17: warning: implicit conversion turns string literal into bool: 'char [31]' to '_Bool' [-Wstring-conversion]
 0:13.50         assert(!"apply_grain: missing bit depth");
 0:13.50                ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 0:13.50 /usr/include/assert.h:106:11: note: expanded from macro 'assert'
 0:13.50       if (expr)                                                         \
 0:13.50           ^~~~