lisp/ox.el: Rename abnormal hook names to end with "-functions"

* lisp/ox.el (org-export-before-processing-functions):
(org-export-before-parsing-functions): Rename
`org-export-before-processing-hook' and
`org-export-before-parsing-hook' to use "-functions" suffix as these
hooks are abnormal hooks and we need not to use "-hook" suffix in
abnormal hooks.
* lisp/org-compat.el (org-export-before-processing-hook):
(org-export-before-parsing-hook): Declare obsolete.
* lisp/org-attach.el (org-export-before-parsing-functions): Use the
new hook name.

lisp/org-attach.el

@@ -792,7 +792,7 @@ Idea taken from `gnus-dired-attach'."
 
 
 (add-hook 'org-archive-hook 'org-attach-archive-delete-maybe)
-(add-hook 'org-export-before-parsing-hook 'org-attach-expand-links)
+(add-hook 'org-export-before-parsing-functions 'org-attach-expand-links)
 
 (provide 'org-attach)
 

lisp/org-compat.el

@@ -331,6 +331,10 @@ Counting starts at 1."
 (define-obsolete-function-alias 'org-string-match-p 'string-match-p "9.0")
 
 ;;;; Functions and variables from previous releases now obsolete.
+(define-obsolete-variable-alias 'org-export-before-processing-hook
+  'org-export-before-processing-functions "Org 9.6")
+(define-obsolete-variable-alias 'org-export-before-parsing-hook
+  'org-export-before-parsing-functions "Org 9.6")
 (define-obsolete-function-alias 'org-element-remove-indentation
   'org-remove-indentation "9.0")
 (define-obsolete-variable-alias 'org-latex-create-formula-image-program

lisp/ox.el

@@ -2088,8 +2088,8 @@ keywords before output."
 
 ;;;; Hooks
 
-(defvar org-export-before-processing-hook nil
-  "Hook run at the beginning of the export process.
+(defvar org-export-before-processing-functions nil
+  "Abnormal hook run at the beginning of the export process.
 
 This is run before include keywords and macros are expanded and
 Babel code blocks executed, on a copy of the original buffer
@@ -2099,8 +2099,8 @@ is at the beginning of the buffer.
 Every function in this hook will be called with one argument: the
 back-end currently used, as a symbol.")
 
-(defvar org-export-before-parsing-hook nil
-  "Hook run before parsing an export buffer.
+(defvar org-export-before-parsing-functions nil
+  "Abnormal hook run before parsing an export buffer.
 
 This is run after include keywords and macros have been expanded
 and Babel code blocks executed, on a copy of the original buffer