Wrap URL for password reset in angle brackets

[demetris]

Some email clients do not handle well URLs that wrap across lines; that is, they fail to make them clickable in their entirety.

This can confuse WP users who are emailed a URL to reset their passwords, because clicking does not lead to a valid URL. See this wp-hackers thread:

​http://groups.google.com/group/wp-hackers/t/155a6011e3a835a2

Core could fix this for several (most? all?) problematic email clients by simply enclosing the URL in angle brackets (the less than and greater than signs) before sending it.

I attach a tentative patch to get us going.

See also a couple of mentions/recommendations of the angle brackets as delimiters for URIs in plain text:

​http://www.w3.org/Addressing/URL/5.1_Wrappers.html

​http://www.ietf.org/rfc/rfc3986.txt (go to Appendix C)

Encloses URL for password reset in angle brackets

Agreed with westi on this (as said over wp-hackers). I imagine there are other instances where < > would be useful, but this is a start.

(In [16285]) Wrap the reset link in <> so as to protect it when it goes over multiple lines in an email client. Fixes #14140 props demetris.

This causes the URL to be parsed as HTML (and therefore not displayed) when the content-type is "text/html". See #23578.