Merge pull request #34 from RedChen/master

Update abnf_regexp.py for a bug fix

Author: sigmavirus24

src/rfc3986/abnf_regexp.py

@@ -107,7 +107,7 @@
     '((%(hex)s:){0,6}%(hex)s)?::' % _subs,
 ]
 
-IPv6_RE = '(({0})|({1})|({2})|({3})|({4})|({5})|({6})|({7}))'.format(
+IPv6_RE = '(({0})|({1})|({2})|({3})|({4})|({5})|({6})|({7})|({8}))'.format(
     *variations
 )