Fix defcustoms in filesets.el (Bug#65708)

* lisp/filesets.el (filesets-browse-dir-function)
(filesets-open-file-function filesets-save-buffer-function)
(filesets-commands filesets-external-viewers): Don't override default
value for the function widget with an invalid default value.
Remove redundant ":" in tag.
Fix default values for choice and list widgets.

diff --git a/lisp/filesets.el b/lisp/filesets.el
index 81a194a45e6087c934d6f1de7c3363ff5b3ef642..639b108ac03f6c92a3ccdb0dfc8f3e0ca02aa21a 100644 (file)
--- a/lisp/filesets.el
+++ b/lisp/filesets.el
@@ -413,15 +413,14 @@ directory's name.
 
 Note: You have to manually rebuild the menu if you change this value."
   :set #'filesets-set-default
-  :type '(choice :tag "Function:"
+  :type '(choice :tag "Function"
                 (const :tag "dired"
                        :value dired)
                 (list :tag "Command"
                       :value ("" "%s")
                       (string :tag "Name")
                       (string :tag "Arguments"))
-                (function :tag "Function"
-                          :value nil)))
+                 (function :tag "Function")))
 
 (defcustom filesets-open-file-function #'filesets-find-or-display-file
   "The function used for opening files.
@@ -437,23 +436,21 @@ readable, will not be opened.
 
 Caveat: Changes will take effect only after rebuilding the menu."
   :set #'filesets-set-default
-  :type '(choice :tag "Function:"
+  :type '(choice :tag "Function"
                 (const :tag "filesets-find-or-display-file"
                        :value filesets-find-or-display-file)
                 (const :tag "filesets-find-file"
                        :value filesets-find-file)
-                (function :tag "Function"
-                          :value nil)))
+                 (function :tag "Function")))
 
 (defcustom filesets-save-buffer-function #'save-buffer
   "The function used to save a buffer.
 Caveat: Changes will take effect after rebuilding the menu."
   :set #'filesets-set-default
-  :type '(choice :tag "Function:"
+  :type '(choice :tag "Function"
                 (const :tag "save-buffer"
                        :value save-buffer)
-                (function :tag "Function"
-                          :value nil)))
+                 (function :tag "Function")))
 
 (defcustom filesets-find-file-delay
   (if (and (featurep 'xemacs) gutter-buffers-tab-visible-p)
@@ -535,7 +532,7 @@ the filename."
   :type '(repeat :tag "Commands"
                 (list :tag "Definition" :value ("")
                       (string "Name")
-                      (choice :tag "Command"
+                       (choice :tag "Command" :value ""
                               (string :tag "String")
                               (function :tag "Function"))
                       (repeat :tag "Argument List"
@@ -546,8 +543,7 @@ the filename."
                                               :value "<file-name>")
                                       (string :tag "Quoted File Name"
                                               :value "<<file-name>>")
-                                      (function :tag "Function"
-                                                 :value nil))))))
+                                       (function :tag "Function"))))))
 
 (defcustom filesets-external-viewers
   (let
@@ -647,12 +643,12 @@ In order to view pdf or rtf files in an Emacs buffer, you could use these:
                       (repeat :tag "Properties"
                               (choice
                                (list :tag ":constraintp"
-                                     :value (:constraintp)
+                                      :value (:constraintp ignore)
                                      (const :format ""
                                             :value :constraintp)
                                      (function :tag "Function"))
                                (list :tag ":constraint-flag (obsolete)"
-                                     :value (:constraint-flag)
+                                      :value (:constraint-flag nil)
                                      (const :format ""
                                             :value :constraint-flag)
                                      (sexp :tag "Symbol"))
@@ -667,7 +663,7 @@ In order to view pdf or rtf files in an Emacs buffer, you could use these:
                                              :value :ignore-on-read-text)
                                      (boolean :tag "Boolean"))
                                (list :tag ":args"
-                                     :value (:args)
+                                      :value (:args nil)
                                      (const :format ""
                                             :value :args)
                                      (repeat :tag "List"
@@ -676,10 +672,9 @@ In order to view pdf or rtf files in an Emacs buffer, you could use these:
                                                              :value "")
                                                      (symbol :tag "Symbol"
                                                              :value nil)
-                                                     (function :tag "Function"
-                                                               :value nil))))
+                                                      (function :tag "Function"))))
                                (list :tag ":open-hook"
-                                     :value (:open-hook)
+                                      :value (:open-hook nil)
                                      (const :format ""
                                             :value :open-hook)
                                      (hook :tag "Hook"))