Bug#796779: cups-server-common: CUPS mime.types no longer recognises PDF - new regex

[Steve Graham <steve.graham@annaghvarn.plus.com>]

Changing the line in /usr/share/cups/mime/mime.types from

application/pdf			pdf regex(0,^[\\n\\r]*%PDF)

to

application/pdf			pdf regex(0,^[\n\r]*%PDF)

also results in PDF spooled files being recognised correctly.