Fix docstrings
* lisp/org-clock.el (org-clock-get-table-data):
* lisp/org-element.el (org-element--cache-objects):
(org-element--cache-generate-key):
* lisp/org-footnote.el (org-footnote--collect-references):
* lisp/org-list.el (org-list-to-lisp):
* lisp/org-table.el (orgtbl-to-generic):
* lisp/org.el (org-file-apps):
(org-execute-file-search-functions):
(org-after-todo-statistics-hook):
(org-find-olp):
* lisp/ox-html.el (org-html-table-row-open-tag): Do not escape
parenthesis in docstring when not at column 0.