ports/149063: Updates mail/squirrelmail to latest release (1.4.21)

[linimon at FreeBSD.org]

Old Synopsis: Updates squirrelmail to latest release (1.4.21)
New Synopsis: Updates mail/squirrelmail to latest release (1.4.21)

Responsible-Changed-From-To: freebsd-ports-bugs->tabthorpe
Responsible-Changed-By: linimon
Responsible-Changed-When: Thu Jul 29 12:08:39 UTC 2010
Responsible-Changed-Why: 
Fix synopsis and assign.

http://www.freebsd.org/cgi/query-pr.cgi?pr=149063