Minor rename: DEFREADER -> DEFINE-READER
Minor rename: DEFREADER -> DEFINE-READER

sctb/lumen,sctb/lumen,shawwn/lumen,laarc/lumen-contrib,laarc/lumen,elflang/elf,laarc/lumen-contrib,laarc/lumen-contrib,shawwn/lumen,shawwn/lumen,shawwn/lumen,sctb/lumen,laarc/lumen,elflang/elf,laarc/lumen,elflang/elf