[nagiosplug] Update libtool

[Thomas Guyot-Sionnest]

 Module: nagiosplug
 Branch: master
 Commit: 3a2f2975e665b2729deae07c4ebb9c27a2fce9d5
 Author: Thomas Guyot-Sionnest <dermoth at aei.ca>
   Date: Wed Apr 28 05:01:43 2010 -0400
    URL: http://nagiosplug.git.sf.net/git/gitweb.cgi?p=nagiosplug/nagiosplug;a=commit;h=3a2f297

Update libtool

Nagios-plugins wouldn't compile on Ubuntu 10.04 (Lucid) with the old libtool

---

 build-aux/ltmain.sh  | 8452 +++++++++++++++++++++++++++++---------------------
 gl/m4/libtool.m4     | 7377 +++++++++++++++++++++++++++++++++++++++++++
 gl/m4/ltoptions.m4   |  368 +++
 gl/m4/ltsugar.m4     |  123 +
 gl/m4/ltversion.m4   |   23 +
 gl/m4/lt~obsolete.m4 |   92 +
 6 files changed, 12980 insertions(+), 3455 deletions(-)

Diff: http://nagiosplug.git.sf.net/git/gitweb.cgi?p=nagiosplug/nagiosplug;a=commitdiff;h=3a2f297