www/69780: query-pr-summary.cgi generates very large html

[Jie Gao]

Well, I think there is no good way to further more reduce the result size, 
considering how many entries we have in the PR database. But can we 
consider hidding some PRs by default? E.g. by default only the PRs within 
the recent 6 months are shown, and a user has the option to display all PRs 
regardless their time. I had a glance at the PRs and found more than half 
of the PRs shown there were older than 6 months. I doubt how many people 
are interested in seeing too old PRs.