ksh: deprecate (Homebrew#107154)

johnsonjh · web-flow · commit cbe819006d3e · 2022-08-10T18:20:48.000+08:00
diff --git a/Formula/ksh.rb b/Formula/ksh.rb
@@ -16,6 +16,8 @@ class Ksh < Formula
     sha256 cellar: :any_skip_relocation, x86_64_linux:   "8a6f8d5a96eaf9d91da32c58e453d7aacc4f47acea57f6a2b3db7cc108bbcd1f"
   end
 
+  deprecate! date: "2020-05-01", because: "abandoned, unmaintained, no releases since 2019; consider ksh93 instead"
+
   depends_on "meson" => :build
   depends_on "ninja" => :build
 
