Add libtool22 as a possible name for the libtool command (Ubuntu)

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@13808 d0543943-73ff-0310-b7d9-9358b9ac24b2

bootstrap.sh

@@ -87,7 +87,7 @@ fi
 # output is multiline from 1.5 onwards
 
 # Require libtool 1.4 or newer
-libtool=${LIBTOOL:-`${LIBDIR}/apr/build/PrintPath glibtool libtool libtool15 libtool14`}
+libtool=${LIBTOOL:-`${LIBDIR}/apr/build/PrintPath glibtool libtool libtool22 libtool15 libtool14`}
 lt_pversion=`$libtool --version 2>/dev/null|sed -e 's/([^)]*)//g;s/^[^0-9]*//;s/[- ].*//g;q'`
 if test -z "$lt_pversion"; then
    echo "bootstrap: libtool not found."