(Create Tags Table): Explain why the exception when etags writes to

files under the /dev tree.

diff --git a/man/maintaining.texi b/man/maintaining.texi
index b3ff4b8dce912eabdcc6d40ec59f380cf3bf39b6..9836aae4e836e7ae74da337c51c8eabfb21fbe66 100644 (file)
--- a/man/maintaining.texi
+++ b/man/maintaining.texi
@@ -404,7 +404,8 @@ directory where the tags file was initially written.  This way, you can
 move an entire directory tree containing both the tags file and the
 source files, and the tags file will still refer correctly to the source
 files.  If the tags file is in @file{/dev}, however, the file names are
-made relative to the current working directory.
+made relative to the current working directory.  This is useful, for
+example, when writing the tags to @file{/dev/stdout}.
 
   If you specify absolute file names as arguments to @code{etags}, then
 the tags file will contain absolute file names.  This way, the tags file