Fix some tex errors

(closes issue #13211)
Reported by: eliel
Patches:
      fixtexerrors.patch uploaded by eliel (license 64)


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@134803 65c4cc65-6c06-0410-ace0-fbb531ad65f3

doc/tex/app-sms.tex

@@ -151,7 +151,7 @@ exten = _X./_80058752[0-8]0,1,Goto(smsmtrx,${EXTEN}-${CALLERID(num):8:1},1)
 \end{astlisting}
 
    Alternatively, if you have the correct national prefix on incoming
-   CLI, e.g. using dahdi_hfc, you might use:
+   CLI, e.g. using dahdi\_hfc, you might use:
 \begin{astlisting}
 \begin{verbatim}
 exten = _X./08005875290,1,Goto(smsmtrx,${EXTEN},1)

doc/tex/queuelog.tex

@@ -106,7 +106,7 @@ member!
 A call was answered by an agent, but the call was dropped because the
 channels were not compatible.
 
-\textbf{TRANSFER(extension$|$context$|$holdtime$|$calltime$|$origposition$)}
+\textbf{TRANSFER(extension$|$context$|$holdtime$|$calltime$|$origposition)}
 
 Caller was transferred to a different extension.  Context and extension
 are recorded. The caller's hold time and the length of the call are both