(ebnf2ps): Fix typo.

(ebnf2ps): Fix typo.
(ebnf-syntactic): Change group name and tag from "ebnf-syntatic".
(ebnf-syntax, ebnf-lex-comment-char, ebnf-lex-eop-char, ebnf-terminal-regexp)
(ebnf-case-fold-search, ebnf-iso-alternative-p, ebnf-iso-normalize-p)
(ebnf-yac-ignore-error-recovery): Add to group "ebnf-syntactic", not
"ebnf-syntatic".
(ebnf-optimize, ebnf-print-buffer, ebnf-print-region, ebnf-spool-buffer)
(ebnf-spool-region, ebnf-eps-buffer, ebnf-eps-region, ebnf-syntax-buffer)
(ebnf-syntax-region, ebnf-generate-region): Fix typo.