Html tables fail on large COLSPAN values in digraph html table
The provided test.dot gives incorrect output image, but when i reduce
the COLSPAN values to a tenth (90, 50, 20, 20), a correctly formatted
image is produced
digraph html {
abc [shape=none, margin=0, label=<
<TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0" CELLPADDING="4">
<TR>
<TD COLSPAN="900">10</TD>
</TR>
<TR>
<TD COLSPAN="500">5</TD>
<TD COLSPAN="200">2</TD>
<TD COLSPAN="200">2</TD>
</TR>
</TABLE>>];
}