Fix change in asterisk.tex that got merged in after testing.

(issue #17220)

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@258383 65c4cc65-6c06-0410-ace0-fbb531ad65f3

doc/tex/asterisk.tex

@@ -32,7 +32,7 @@
 
 
 \author{Asterisk Development Team \\ Asterisk.org}
-\title{Asterisk Reference Information \\ SVN-trunk-r258265M}
+\title{Asterisk Reference Information \\ ASTERISKVERSION}
 
 \begin{document}
 \maketitle