font name is nil in log messages

[Udi-Fogiel]

There are several log messages that use a nil variable (fontname):

luaotfload/src/luaotfload-auxiliary.lua

Lines 727 to 731 in 7256136

	logreport ("log", 1, "aux",
	"font no %d (%s) defines feature %s "
	.. "for script %s with language %s",
	font_id, fontname, asked_feature,
	asked_script, asked_language)

luaotfload/src/luaotfload-auxiliary.lua

Lines 736 to 738 in 7256136

	logreport ("log", 0, "aux",
	"font no %d (%s) does not define feature %s for script %s with language %s",
	font_id, fontname, asked_feature, asked_script, asked_language)

luaotfload/src/luaotfload-auxiliary.lua

Lines 578 to 581 in 7256136

	logreport ("log", 0, "aux",
	"font no %d (%s) defines no feature "
	.. "for script %s with language %s",
	font_id, fontname, asked_script, asked_language)

luaotfload/src/luaotfload-auxiliary.lua

Lines 569 to 573 in 7256136

	logreport ("log", 1, "aux",
	"font no %d (%s) defines feature %s "
	.. "for script %s with language %s",
	font_id, fontname, feature,
	asked_script, asked_language)

In adiition, can these (and the other aux related) messages be optional and only be displayed if asked (with some kind of a debugging option)?

[Udi-Fogiel]

Also note that with harfbuzz these messages are not displayed. Compare

\input luaotfload.sty
\font\foo={name:TeX Gyre Termes:mode=harf}\foo
\directlua{
bool = luaotfload.aux.provides_language(font.current(),'latn','eng')
}
\end

with

\input luaotfload.sty
\font\foo={name:TeX Gyre Terme}\foo
\directlua{
bool = luaotfload.aux.provides_language(font.current(),'latn','eng')
}
\end

[zauguin]

Replaced the nil with an actual fontname and increase their log level to 2 since they are at most tracing output.

[Udi-Fogiel]

Thanks!