Update

indent/rust.vim

@@ -3,11 +3,12 @@ if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'rust') == -1
 " Vim indent file
 " Language:         Rust
 " Author:           Chris Morgan <me@chrismorgan.info>
-" Last Change:      2016 Jul 15
+" Last Change:      2017 Mar 21
+" For bugs, patches and license go to https://github.com/rust-lang/rust.vim
 
 " Only load this indent file when no other was loaded.
 if exists("b:did_indent")
-  finish
+	finish
 endif
 let b:did_indent = 1
 
@@ -15,7 +16,7 @@ setlocal cindent
 setlocal cinoptions=L0,(0,Ws,J1,j1
 setlocal cinkeys=0{,0},!^F,o,O,0[,0]
 " Don't think cinwords will actually do anything at all... never mind
-setlocal cinwords=for,if,else,while,loop,impl,mod,unsafe,trait,struct,enum,fn,extern
+setlocal cinwords=for,if,else,while,loop,impl,mod,unsafe,trait,struct,enum,fn,extern,macro
 
 " Some preliminary settings
 setlocal nolisp		" Make sure lisp indenting doesn't supersede us
@@ -27,9 +28,12 @@ setlocal indentexpr=GetRustIndent(v:lnum)
 
 " Only define the function once.
 if exists("*GetRustIndent")
-  finish
+	finish
 endif
 
+let s:save_cpo = &cpo
+set cpo&vim
+
 " Come here when loading the script the first time.
 
 function! s:get_line_trimmed(lnum)
@@ -207,4 +211,7 @@ function GetRustIndent(lnum)
 	return cindent(a:lnum)
 endfunction
 
+let &cpo = s:save_cpo
+unlet s:save_cpo
+
 endif