Matches glibc commit 9a0cc8c1bd7645bf3c988890ffb59639c07a5812.
[ChangeLog][QtCore][QUrl] Fixed a bug in parsing IPv6 addresses with
more than 4 hex digits in a component.
[ChangeLog][QtNetwork][QHostAddress] Fixed a bug in parsing IPv6
addresses with more than 4 hex digits in a component.
[1] https://sourceware.org/git/?p=glibc.git;a=commit;h=9a0cc8c1bd7645bf3c988890ffb59639c07a5812
Change-Id: I2701038131d91eb108aebb3bec16278e4efe3de2
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>