Merge pull request matplotlib#22349 from QuLogic/luatex-kpsewhich

Use latex as the program name for kpsewhich

Author: timhoffm

lib/matplotlib/mpl-data/kpsewhich.lua

@@ -1,3 +1,3 @@
 -- see dviread._LuatexKpsewhich
-kpse.set_program_name("tex")
+kpse.set_program_name("latex")
 while true do print(kpse.lookup(io.read():gsub("\r", ""))); io.flush(); end