Use *-function instead of *-func.

Use *-function instead of *-func.

wl-address-init-function
wl-draft-cite-function
wl-draft-queue-flush-send-function
wl-draft-send-function
wl-draft-send-mail-function
wl-draft-send-news-function
wl-expire-archive-get-folder-function
wl-fldmgr-sort-function
wl-folder-completion-function
wl-folder-init-function
wl-generate-mailer-string-function
wl-highlight-signature-search-function
wl-highlight-x-face-function
wl-load-profile-function
wl-message-buffer-prefetch-get-next-function
wl-message-buffer-prefetch-get-next-function
wl-print-buffer-function
wl-ps-print-buffer-function
wl-score-edit-exit-function
wl-summary-buffer-exit-function
wl-summary-buffer-message-redisplay-function
wl-summary-buffer-next-folder-function
wl-summary-buffer-prev-folder-function
wl-summary-from-function
wl-summary-get-petname-function
wl-summary-subject-filter-function
wl-summary-subject-function