[O] Bug: org export to html add a unnecessary empty line in "example" block [9.1.9 (release_9.1.9-65-g5e4542 @ /usr/local/Cellar/emacs-plus/26.1/share/emacs/26.1/lisp/org/)]

[孙振祥]

Remember to cover the basics, that is, what you expected to happen and
what in fact did happen.  You don't know how to make a good report?  See

     https://orgmode.org/manual/Feedback.html#Feedback

Your bug report will be posted to the Org mailing list.
------------------------------------------------------------------------

the org file like
: abc
: def

and export to html will become
<pre class="example">abc
def

</pre>


Emacs  : GNU Emacs 26.1 (build 1, x86_64-apple-darwin17.6.0, NS appkit-1561.40 
Version 10.13.5 (Build 17F77))
of 2018-06-05
Package: Org mode version 9.1.9 (release_9.1.9-65-g5e4542 @ 
/usr/local/Cellar/emacs-plus/26.1/share/emacs/26.1/lisp/org/)

current state:
==============
(setq
org-src-mode-hook '(org-src-babel-configure-edit-buffer
                     org-src-mode-configure-edit-buffer)
org-after-todo-state-change-hook '(org-clock-out-if-current)
org-metadown-hook '(org-babel-pop-to-session-maybe)
org-clock-out-hook '(org-clock-remove-empty-clock-drawer)
org-html-format-inlinetask-function 'org-html-format-inlinetask-default-function
org-odt-format-headline-function 'org-odt-format-headline-default-function
org-ascii-format-inlinetask-function 'org-ascii-format-inlinetask-default
org-mode-hook '(#[0 "\300\301\302\303\304$\207"
                   [add-hook change-major-mode-hook org-show-block-all append
                    local]
                   5]
                 #[0 "\300\301\302\303\304$\207"
                   [add-hook change-major-mode-hook org-babel-show-result-all
                    append local]
                   5]
                 org-babel-result-hide-spec org-babel-hide-all-hashes)
org-odt-format-drawer-function #[514 "\207" [] 3 "\n\n(fn NAME CONTENTS)"]
org-archive-hook '(org-attach-archive-delete-maybe)
org-confirm-elisp-link-function 'yes-or-no-p
org-agenda-before-write-hook '(org-agenda-add-entry-text)
org-metaup-hook '(org-babel-load-in-session-maybe)
org-bibtex-headline-format-function #[257 "\300\236A\207" [:title] 3 "\n\n(fn 
ENTRY)"]
org-latex-format-drawer-function #[514 "\207" [] 3 "\n\n(fn _ CONTENTS)"]
org-babel-pre-tangle-hook '(save-buffer)
org-tab-first-hook '(org-babel-hide-result-toggle-maybe
                      org-babel-header-arg-expand)
org-ascii-format-drawer-function #[771 "\207" [] 4 "\n\n(fn NAME CONTENTS 
WIDTH)"]
org-occur-hook '(org-first-headline-recenter)
org-cycle-hook '(org-cycle-hide-archived-subtrees org-cycle-hide-drawers
                  org-cycle-show-empty-lines
                  org-optimize-window-after-visibility-change)
org-speed-command-hook '(org-speed-command-activate
                          org-babel-speed-command-activate)
org-odt-format-inlinetask-function 'org-odt-format-inlinetask-default-function
org-confirm-shell-link-function 'yes-or-no-p
org-link-parameters '(("id" :follow org-id-open)
                       ("rmail" :follow org-rmail-open :store
                        org-rmail-store-link)
                       ("mhe" :follow org-mhe-open :store org-mhe-store-link)
                       ("irc" :follow org-irc-visit :store org-irc-store-link)
                       ("info" :follow org-info-open :export org-info-export
                        :store org-info-store-link)
                       ("gnus" :follow org-gnus-open :store
                        org-gnus-store-link)
                       ("docview" :follow org-docview-open :export
                        org-docview-export :store org-docview-store-link)
                       ("bibtex" :follow org-bibtex-open :store
                        org-bibtex-store-link)
                       ("bbdb" :follow org-bbdb-open :export org-bbdb-export
                        :complete org-bbdb-complete-link :store
                        org-bbdb-store-link)
                       ("w3m" :store org-w3m-store-link) ("file+sys")
                       ("file+emacs") ("doi" :follow org--open-doi-link)
                       ("elisp" :follow org--open-elisp-link)
                       ("file" :complete org-file-complete-link)
                       ("ftp" :follow
                        (lambda (path) (browse-url (concat "ftp:" path))))
                       ("help" :follow org--open-help-link)
                       ("http" :follow
                        (lambda (path) (browse-url (concat "http:" path))))
                       ("https" :follow
                        (lambda (path) (browse-url (concat "https:" path))))
                       ("mailto" :follow
                        (lambda (path) (browse-url (concat "mailto:"; path))))
                       ("news" :follow
                        (lambda (path) (browse-url (concat "news:"; path))))
                       ("shell" :follow org--open-shell-link))
org-latex-format-headline-function 'org-latex-format-headline-default-function
org-latex-format-inlinetask-function 
'org-latex-format-inlinetask-default-function
org-html-format-drawer-function #[514 "\207" [] 3 "\n\n(fn NAME CONTENTS)"]
org-html-format-headline-function 'org-html-format-headline-default-function
)