Cosmetic fix for Man-unindent.

* lisp/man.el (Man-unindent): Use text-property-default-nonsticky to
prevent untabify from inheriting face properties.

Fixes: debbugs:11408

2 files changed, 11 insertions, 1 deletions

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index 43045fbbbd2..2a33bffca18 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,8 @@
+2012-05-06  Wolfgang Jenkner  <wjenkner@inode.at>
+
+        * man.el (Man-unindent): Use text-property-default-nonsticky to
+        prevent untabify from inheriting face properties (Bug#11408).
+
 2012-05-05  Glenn Morris  <rgm@gnu.org>
 
         * calendar/cal-html.el: Optionally include holidays in the output.
diff --git a/lisp/man.el b/lisp/man.el
index dd64613c495..ca7df4cd1a4 100644
--- a/lisp/man.el
+++ b/lisp/man.el
@@ -1475,7 +1475,12 @@ The following key bindings are currently in effect in the buffer:
             (nindent 0))
         (narrow-to-region (car page) (car (cdr page)))
         (if Man-uses-untabify-flag
-            (untabify (point-min) (point-max)))
+            ;; The space characters inserted by `untabify' inherit
+            ;; sticky text properties, which is unnecessary and looks
+            ;; ugly with underlining (Bug#11408).
+            (let ((text-property-default-nonsticky
+                   (cons '(face . t) text-property-default-nonsticky)))
+              (untabify (point-min) (point-max))))
         (if (catch 'unindent
               (goto-char (point-min))
               (if (not (re-search-forward Man-first-heading-regexp nil t))