All reports of quoted-placeholder-in-mailcap-entry for the archive. The extended description of this tag is:
The %s placeholder in a mailcap entry is quoted. That is considered unsafe. Proper escaping should be left to the programs using the entry.
Please remove the single or double quotes around %s.
Refer to https://bugs.debian.org/33486, https://bugs.debian.org/90483, https://bugs.debian.org/745141, https://tools.ietf.org/rfc/rfc1524.txt, http://bugs.debian.org/745141#17, and https://lists.debian.org/debian-user/2005/04/msg01185.html for details.
This tag has not been emitted in any package tested by Lintian.