SF #664011, move tarfile module in docs

Doc/lib/lib.tex

@@ -128,7 +128,6 @@ and how to embed it in other applications.
 \input{libcfgparser}
 \input{libfileinput}
 \input{libxreadlines}
-\input{libtarfile}
 \input{libcalendar}
 \input{libcmd}
 \input{libshlex}
@@ -179,6 +178,7 @@ and how to embed it in other applications.
 \input{libgzip}
 \input{libbz2}
 \input{libzipfile}
+\input{libtarfile}
 \input{libreadline}
 \input{librlcompleter}