* lisp/filesets.el (filesets-external-viewers): Tighten regexp.

diff --git a/lisp/filesets.el b/lisp/filesets.el
index 661a93edf199eb4aacca449a1227eccd165e4b2d..2ef13ae832050cbbd7b9e74a80577c7a13aee5d1 100644 (file)
--- a/lisp/filesets.el
+++ b/lisp/filesets.el
@@ -588,7 +588,7 @@ the filename."
        (:ignore-on-read-text t)
        ;; (:constraintp ,pdf-cmd)
        ))
-      (".\\.e?ps\\(.gz\\)?\\'" ,ps-cmd
+      (".\\.e?ps\\(?:\\.gz\\)?\\'" ,ps-cmd
        ((:ignore-on-open-all t)
        (:ignore-on-read-text t)
        ;; (:constraintp ,ps-cmd)