Fix permanent link in printed PDF output
When I print the result of an IPv6 search to a PDF document using the PDF exporter that comes with Mac OS X, that document lets me follow that link, but it gets the link wrong. In particular, it omits the timestamp parameter value.
Example:
When printing the following page to PDF,
https://exonerator.torproject.org/?ip=[2001%3A858%3A2%3A2%3Aaabb%3A0%3A563b%3A1526]×tamp=2015-01-01
the PDF contains the following link:
https://exonerator.torproject.org/?ip=[2001%3A858%3A2%3A2%3Aaabb%3A0%3A563b%3A1526]×tamp
For some reason, this works just fine with IPv4 addresses.