* lisp/nxml/rng-cmpct.el (rng-c-syntax-table): * lisp/progmodes/cperl-mode.el (cperl-mode-syntax-table) (cperl-string-syntax-table2): * lisp/progmodes/dcl-mode.el (dcl-mode-syntax-table): Normalize definitions to better follow modern ELisp conventions.