Lift restriction for finding theme summary line

* lisp/cus-theme.el (custom-theme-summary): Don't limit the file to
having the deftheme form as the very first form, rather look for the
deftheme form explicitly.

1 files changed, 6 insertions, 4 deletions

diff --git a/lisp/cus-theme.el b/lisp/cus-theme.el
index 13fb9f34fa0..dfa22264037 100644
--- a/lisp/cus-theme.el
+++ b/lisp/cus-theme.el
@@ -657,10 +657,12 @@ Theme files are named *-theme.el in `"))
             (insert-file-contents fn)
             (let ((sexp (let ((read-circle nil))
                           (condition-case nil
-                              (read (current-buffer))
-                            (end-of-file nil)))))
-              (and (eq (car-safe sexp) 'deftheme)
-                   (setq doc (nth 2 sexp))))))))
+                              (progn
+                                (re-search-forward "^(deftheme")
+                                (beginning-of-line)
+                                (read (current-buffer)))
+                            (error nil)))))
+              (setq doc (nth 2 sexp)))))))
     (cond ((null doc)
            "(no documentation available)")
           ((string-match ".*" doc)