Update runtime files.

runtime/syntax/debcopyright.vim

@@ -0,0 +1,33 @@
+" Vim syntax file
+" Language:    Debian copyright file
+" Maintainer:  Debian Vim Maintainers
+" Last Change: 2018 Feb 05
+" URL: https://salsa.debian.org/vim-team/vim-debian/blob/master/syntax/debcopyright.vim
+
+" Standard syntax initialization
+if exists('b:current_syntax')
+  finish
+endif
+
+let s:cpo_save = &cpo
+set cpo&vim
+
+syn case match
+
+syn match debcopyrightUrl       "\vhttps?://[[:alnum:]][-[:alnum:]]*[[:alnum:]]?(\.[[:alnum:]][-[:alnum:]]*[[:alnum:]]?)*\.[[:alpha:]][-[:alnum:]]*[[:alpha:]]?(:\d+)?(/[^[:space:]]*)?$"
+syn match debcopyrightKey       "^\%(Format\|Upstream-Name\|Upstream-Contact\|Disclaimer\|Source\|Comment\|Files\|Copyright\|License\): *"
+syn match debcopyrightEmail     "[_=[:alnum:]\.+-]\+@[[:alnum:]\./\-]\+"
+syn match debcopyrightEmail     "<.\{-}>"
+syn match debcopyrightComment   "^#.*$" contains=@Spell
+
+hi def link debcopyrightUrl     Identifier
+hi def link debcopyrightKey     Keyword
+hi def link debcopyrightEmail   Identifier
+hi def link debcopyrightComment Comment
+
+let b:current_syntax = 'debcopyright'
+
+let &cpo = s:cpo_save
+unlet s:cpo_save
+
+" vim: ts=8 sw=2