cosmetics: tweak RESPONSEFORMAT table to keep in margins

The parquet entry made the table wider, so delete an empty column
and avoid an indent to stop the hbox overflowing.

DALI.tex

@@ -1064,18 +1064,19 @@ \subsubsection{RESPONSEFORMAT}
 formats as well as
 shortcut symbolic values.
 
-\begin{tabular}{l l l l l}
+\noindent
+\begin{tabular}{l l l l}
 \sptablerule
 table type & media type & short form \\
 \sptablerule
-VOTable & application/x-votable+xml & votable & \\
-VOTable & text/xml & votable & \\
-comma-separated values & text/csv & csv & \\
-tab separated values & text/tab-separated-values & tsv & \\
-FITS file & application/fits & fits & \\
-Parquet file & application/vnd.apache.parquet & parquet & \\
-pretty-printed text & text/plain & text & \\
-pretty-printed Web page & text/html & html & \\
+VOTable & application/x-votable+xml & votable \\
+VOTable & text/xml & votable \\
+comma-separated values & text/csv & csv \\
+tab separated values & text/tab-separated-values & tsv \\
+FITS file & application/fits & fits \\
+Parquet file & application/vnd.apache.parquet & parquet \\
+pretty-printed text & text/plain & text \\
+pretty-printed Web page & text/html & html \\
 \sptablerule
 \label{tab:mimetypes}
 \end{tabular}