(speedbar-toggle-images): Fix docstring.

(speedbar-toggle-images): Fix docstring.
(speedbar-toggle-sorting): Likewise.
(speedbar-line-file): Likewise.
(speedbar-parse-c-or-c++tag): Likewise.
(speedbar-special-mode-key-map): Fix typo.
(speedbar-dynamic-tags-function-list): Likewise.
(speedbar-sort-tags): Likewise.
(speedbar-tag-hierarchy-method): Likewise.
(speedbar-use-images): Likewise.
(speedbar-add-supported-extension): Likewise.
(speedbar-make-specialized-keymap): Likewise.
(speedbar-desired-buffer): Likewise.
(speedbar-up-directory): Likewise.
(speedbar-generic-item-info): Likewise.
(speedbar-item-info): Likewise.
(speedbar-set-timer): Likewise.
(speedbar-insert-button): Likewise.
(speedbar-make-button): Likewise.
(speedbar-make-tag-line): Likewise.
(speedbar-insert-files-at-point): Likewise.
(speedbar-update-special-contents): Likewise.
(speedbar-add-indicator): Likewise.
(speedbar-do-function-pointer): Likewise.
(speedbar-line-path): Likewise.
(speedbar-xemacsp): Likewise.
(speedbar-dir-follow): Likewise.
(speedbar-fetch-etags-command): Likewise.
(speedbar-fetch-etags-arguments): Likewise.
(speedbar-toggle-etags): Likewise.
(speedbar-extract-one-symbol): Likewise.
(speedbar-unhighlight-one-tag-line): Likewise.
(speedbar-directory-face): Likewise.
(defimage-speedbar): Likewise.
(speedbar-convert-emacs21-imagespec-to-xemacs): Likewise.
(defimage-speedbar): Likewise.