libtool: Update pxref to remove texinfo warning

Building the documentation contains this warning:
  libtool.texi:1333: warning: @pxref node name should not contain `.'

Now, users will be linked to the top of the autoconf manual and need
to manually scroll to the section specified.

* doc/libtool.texi: Specify section header instead of duplicating
  autoconf manual name.

diff --git a/doc/libtool.texi b/doc/libtool.texi
index 9da9f7063a97a105ea6ba71e0c004287a3b0ce6c..b212b24cf349a7ffae63e6098d18e4d07e22a5fa 100644 (file)
--- a/doc/libtool.texi
+++ b/doc/libtool.texi
@@ -1330,10 +1330,10 @@ category is @command{all}. To disable warnings, use the category
 
 The current @command{libtool} implementation is done with a shell script
 that needs to be invoked by the shell that @command{configure} chose for
-configuring @command{libtool} (@pxref{config.status Invocation, , The
-Autoconf Manual, autoconf, The Autoconf Manual}).  This shell is set in
-the she-bang (@samp{#!}) line of the @command{libtool} script.  Using a
-different shell may cause undefined behavior.
+configuring @command{libtool} (@pxref{, , config.status Invocation,
+autoconf, The Autoconf Manual}).  This shell is set in the she-bang
+(@samp{#!}) line of the @command{libtool} script.  Using a different
+shell may cause undefined behavior.
 
 The @var{mode-args} are a variable number of arguments, depending on the
 selected operation mode.  In general, each @var{mode-arg} is interpreted