TraceLogLevel carried `warning` beside `log-warning` so that sand.flan's
one call kept working while the rename landed. The review found it was not
inert: render.ml folds members last-wins, so a 4 read back as :warning in
the break loop, the did-you-mean offered it, and every TraceLogLevel error
listed it. A spelling nobody should write was the one the compiler taught.
So the call is respelled and the alias is gone. Every member of every mapped
enum carries its enum's prefix now, with no exception to explain.
Joseph Ferano
10b1abbf09