‘text-quoting-style’ fixes for admin

* admin/admin.el (cusver-scan, cusver-check):
* admin/authors.el (authors-canonical-file-name):
* admin/bzrmerge.el (bzrmerge-missing):
Respect ‘text-quoting-style’ in diagnostics.

admin/admin.el

@@ -674,8 +674,8 @@ If optional argument OLD is non-nil, also scan for `defvar's."
 	      (and (not old)
 		   (equal "custom" (match-string 2))
 		   (not (memq :type form))
-		   (display-warning 'custom
-				    (format "Missing type in: `%s'" form)))
+		   (display-warning
+                    'custom (format-message "Missing type in: `%s'" form)))
 	      (setq ver (car (cdr-safe (memq :version form))))
 	      (if (equal "group" (match-string 2))
 		  ;; Group :version could be old.
@@ -689,7 +689,7 @@ If optional argument OLD is non-nil, also scan for `defvar's."
 		       (setq grp (car (cdr-safe grp))) ; (quote foo) -> foo
 		       (setq ver (assq grp glist))))
 		(setq alist (cons (cons var ver) alist))))
-          (if form (message "Malformed defcustom: `%s'" form)))))
+          (if form (format-message "Malformed defcustom: `%s'" form)))))
     (message "%sdone" m)
     alist))
 
@@ -781,7 +781,8 @@ changes (in a non-trivial way).  This function does not check for that."
 	(message "No missing :version tags")
       (pop-to-buffer "*cusver*")
       (erase-buffer)
-      (insert "These `defcustom's might be missing :version tags:\n\n")
+      (insert (substitute-command-keys
+               "These `defcustom's might be missing :version tags:\n\n"))
       (dolist (elem result)
 	(let* ((str (file-relative-name (car elem) newdir))
 	       (strlen (length str)))

admin/authors.el

@@ -1078,10 +1078,10 @@ to print a message if FILE is not found."
 		  (string-match "^[0-9.]+$" file)
 		  laxlog)
 	(setq authors-invalid-file-names
-	      (cons (format "%s:%d: unrecognized `%s' for %s"
-			    log-file
-			    (1+ (count-lines (point-min) pos))
-			    file author)
+	      (cons (format-message "%s:%d: unrecognized `%s' for %s"
+				    log-file
+				    (1+ (count-lines (point-min) pos))
+				    file author)
 		    authors-invalid-file-names)))
       valid)))
 

admin/bzrmerge.el

@@ -140,11 +140,11 @@ are both lists of revnos, in oldest-first order."
                     (setq str (substring str (match-end 0))))
                   (when (string-match "[.!;, ]+\\'" str)
                     (setq str (substring str 0 (match-beginning 0))))
-                  (let ((help-form "\
+                  (let ((help-form (substitute-command-keys "\
 Type `y' to skip this revision,
 `N' to include it and go on to the next revision,
 `n' to not skip, but continue to search this log entry for skip regexps,
-`q' to quit merging."))
+`q' to quit merging.")))
                     (pcase (save-excursion
                             (read-char-choice
                              (format "%s: Skip (y/n/N/q/%s)? " str