runtime(nginx): Add NGINX directive for background cache updates
Docs: https://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_cache_background_update
closes: #17458
Signed-off-by: S0AndS0 <strangerthanbland@gmail.com>
Signed-off-by: Chris Aumann <me@chr4.org>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/syntax/nginx.vim b/runtime/syntax/nginx.vim
index d036c12..ad8bdbf 100644
--- a/runtime/syntax/nginx.vim
+++ b/runtime/syntax/nginx.vim
@@ -2,6 +2,7 @@
" Language: nginx.conf
" Maintainer: Chris Aumann <me@chr4.org>
" Last Change: Nov 25, 2023
+" 2025 Jun 08 by Vim Project: improve syntax (#17458)
if exists("b:current_syntax")
finish
@@ -389,6 +390,7 @@
syn keyword ngxDirective proxy_buffers
syn keyword ngxDirective proxy_busy_buffers_size
syn keyword ngxDirective proxy_cache
+syn keyword ngxDirective proxy_cache_background_update
syn keyword ngxDirective proxy_cache_bypass
syn keyword ngxDirective proxy_cache_convert_head
syn keyword ngxDirective proxy_cache_key