shfmt: update to 3.13.1.

srcpkgs/shfmt/template

@@ -1,6 +1,6 @@
 # Template file for 'shfmt'
 pkgname=shfmt
-version=3.12.0
+version=3.13.1
 revision=1
 build_style=go
 go_import_path=mvdan.cc/sh/v3
@@ -14,7 +14,7 @@ license="BSD-3-Clause"
 homepage="https://github.com/mvdan/sh"
 changelog="https://raw.githubusercontent.com/mvdan/sh/master/CHANGELOG.md"
 distfiles="https://github.com/mvdan/sh/archive/v${version}.tar.gz"
-checksum=ac15f42feeba55af29bd07698a881deebed1cd07e937effe140d9300e79d5ceb
+checksum=b31aad2d4c26b0c6e8ebe894d59022520bbebce33e082d7d29e4325eee35d308
 
 post_install() {
 	scdoc < cmd/shfmt/shfmt.1.scd > shfmt.1