bug#19555: shr-urlify: undecoded URIs make help-echo unhelpful

[Ivan Shmakov <ivan@siamics.net>]

>>>>> Juri Linkov <juri@linkov.net> writes:

 >> As of 88bc8332eb14 (2015-01-07 13:51:41 +0000), shr-urlify stores an
 >> undecoded URI as the link text's help-echo property, while it should
 >> most probably use a decoded IRI string instead.

 > Firefox uses the preference network.standard-url.escape-utf8 to do
 > the same: http://kb.mozillazine.org/Network.standard-url.escape-utf8
 > and it was useful by set it to false, so I welcome this change,
 > thanks.

	The change only affects the text displayed in the echo area when
	walking over the links (as in: shr-next-link, TAB), while the
	Firefox option above deals with copying of the URIs, – an
	equivalent to shr-copy-url (‘w’.)  Or perhaps G C-n in EWW, –
	assuming eww-links-at-point tops the eww-suggest-uris list.

	The latter is yet to be changed.  But given that the user may or
	may not want an decoded URI, I’d rather introduce a customizable
	variable for that, yes.

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