Update runtime files
diff --git a/runtime/syntax/proto.vim b/runtime/syntax/proto.vim
index 4615e0c..0d2d2f2 100644
--- a/runtime/syntax/proto.vim
+++ b/runtime/syntax/proto.vim
@@ -1,26 +1,36 @@
-" syntax file for Protocol Buffers - Google's data interchange format
-"
+" Protocol Buffers - Google's data interchange format
" Copyright 2008 Google Inc. All rights reserved.
+" https://developers.google.com/protocol-buffers/
"
-" Permission is hereby granted, free of charge, to any person obtaining a copy
-" of this software and associated documentation files (the "Software"), to deal
-" in the Software without restriction, including without limitation the rights
-" to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-" copies of the Software, and to permit persons to whom the Software is
-" furnished to do so, subject to the following conditions:
+" Redistribution and use in source and binary forms, with or without
+" modification, are permitted provided that the following conditions are
+" met:
"
-" The above copyright notice and this permission notice shall be included in
-" all copies or substantial portions of the Software.
+" * Redistributions of source code must retain the above copyright
+" notice, this list of conditions and the following disclaimer.
+" * Redistributions in binary form must reproduce the above
+" copyright notice, this list of conditions and the following disclaimer
+" in the documentation and/or other materials provided with the
+" distribution.
+" * Neither the name of Google Inc. nor the names of its
+" contributors may be used to endorse or promote products derived from
+" this software without specific prior written permission.
"
-" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-" IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-" FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-" AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-" LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-" OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-" THE SOFTWARE.
-"
-" http://code.google.com/p/protobuf/
+" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+" "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+" LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+" A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+" OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+" SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+" LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+" OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+" This is the Vim syntax file for Google Protocol Buffers as found at
+" https://github.com/protocolbuffers/protobuf
+" Last update: 2020 Oct 29
" quit when a syntax file was already loaded
if exists("b:current_syntax")
@@ -33,10 +43,10 @@
syn cluster protoCommentGrp contains=protoTodo
syn keyword protoSyntax syntax import option
-syn keyword protoStructure package message group
+syn keyword protoStructure package message group oneof
syn keyword protoRepeat optional required repeated
syn keyword protoDefault default
-syn keyword protoExtend extend extensions to max
+syn keyword protoExtend extend extensions to max reserved
syn keyword protoRPC service rpc returns
syn keyword protoType int32 int64 uint32 uint64 sint32 sint64
@@ -48,10 +58,10 @@
syn match protoInt /-\?\<\d\+\>/
syn match protoInt /\<0[xX]\x+\>/
syn match protoFloat /\<-\?\d*\(\.\d*\)\?/
-syn region protoComment start="\/\*" end="\*\/" contains=@protoCommentGrp
-syn region protoComment start="//" skip="\\$" end="$" keepend contains=@protoCommentGrp
-syn region protoString start=/"/ skip=/\\./ end=/"/
-syn region protoString start=/'/ skip=/\\./ end=/'/
+syn region protoComment start="\/\*" end="\*\/" contains=@pbCommentGrp,@Spell
+syn region protoComment start="//" skip="\\$" end="$" keepend contains=@pbCommentGrp,@Spell
+syn region protoString start=/"/ skip=/\\./ end=/"/ contains=@Spell
+syn region protoString start=/'/ skip=/\\./ end=/'/ contains=@Spell
hi def link protoTodo Todo