[autofix.ci] apply automated fixes

autofix-ci[bot] · web-flow · commit b2aa1caaf9ec · 2025-12-27T19:42:29.000Z
diff --git a/docs/ops/network-service/dns.md b/docs/ops/network-service/dns.md
@@ -117,8 +117,6 @@ close(3)                                = 0
 
 ##### NSS
 
-
-
 #### musl
 
 ## 服务端 {#server}
