runtime/doc/options.txt

src/ex_cmds.c

src/ex_docmd.c

src/ex_getln.c

src/gui.c

src/misc1.c

src/normal.c

src/option.c

src/option.h

src/proto/regexp.pro

src/proto/search.pro

src/quickfix.c

src/regexp.c

src/screen.c

src/search.c

src/spell.c

src/structs.h

src/syntax.c

src/tag.c

src/version.c