doc: fix another bad @xref

Obviously, I didn't fully test commit f35498d.

* doc/autoconf.texi (Limitations of Builtins): Add a comma.

Signed-off-by: Eric Blake <eblake@redhat.com>

diff --git a/doc/autoconf.texi b/doc/autoconf.texi
index 34ca21372e5b916b89665c0ffba5a348d64350cf..393e38f2dc9d0debaf93361b4dca1227e7f68c4b 100644 (file)
--- a/doc/autoconf.texi
+++ b/doc/autoconf.texi
@@ -17874,7 +17874,7 @@ for an @command{echo} that does not interpret @samp{\} or leading
 @samp{-}. With Solaris @command{ksh}, it is possible to use @code{print
 -r --} for this role instead.
 
-@xref{echo, , Limitations of Shell Builtins} for a discussion of
+@xref{echo, , Limitations of Shell Builtins}, for a discussion of
 portable alternatives to both @command{printf} and @command{echo}.