* text.texi (User-Level Deletion): Document `delete-trailing-whitespace'.

Fixes: debbugs:15309

2 files changed, 18 insertions, 0 deletions

diff --git a/doc/lispref/ChangeLog b/doc/lispref/ChangeLog
index 47be7082fc7..cf4cef30e0e 100644
--- a/doc/lispref/ChangeLog
+++ b/doc/lispref/ChangeLog
@@ -1,3 +1,8 @@
+2014-02-10  Lars Ingebrigtsen  <larsi@gnus.org>
+
+        * text.texi (User-Level Deletion): Document
+        `delete-trailing-whitespace' (bug#15309).
+
 2014-02-09  Lars Ingebrigtsen  <larsi@gnus.org>
 
         * text.texi (Changing Properties): Clarify `propertize' (bug#9825).
diff --git a/doc/lispref/text.texi b/doc/lispref/text.texi
index 76b65e9d7e0..18701465d0f 100644
--- a/doc/lispref/text.texi
+++ b/doc/lispref/text.texi
@@ -787,6 +787,19 @@ A blank line is defined as a line containing only tabs and spaces.
 @code{delete-blank-lines} returns @code{nil}.
 @end deffn
 
+@deffn Command delete-trailing-whitespace start end
+Delete trailing whitespace in the region defined by @var{start} and
+@var{end}.
+
+This command deletes whitespace characters after the last
+non-whitespace character in each line in the region.
+
+If this command acts on the entire buffer (i.e. if called
+interactively with the mark inactive, or called from Lisp with
+@var{end} nil), it also deletes all trailing lines at the end of the
+buffer if the variable @code{delete-trailing-lines} is non-@code{nil}.
+@end deffn
+
 @node The Kill Ring
 @section The Kill Ring
 @cindex kill ring