https://git.ruby-lang.org/ruby.git/commit/?id=cc533cb607

From cc533cb607d9d96356c12b880d0871a3b24f35e9 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Sat, 17 Sep 2022 22:51:30 +0900
Subject: Downloader: Define long option aliases

---
 tool/downloader.rb | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/tool/downloader.rb b/tool/downloader.rb
index f09d44851e..3020322a98 100644
--- a/tool/downloader.rb
+++ b/tool/downloader.rb
@@ -395,18 +395,20 @@ if $0 == __FILE__ https://github.com/ruby/ruby/blob/trunk/tool/downloader.rb#L395
     end
 
     case ARGV[0]
-    when '-d'
+    when '-d', '--destdir'
       destdir = ARGV[1]
       ARGV.shift
-    when '-p'
+    when '-p', '--prefix'
       # strip directory names from the name to download, and add the
       # prefix instead.
       prefix = ARGV[1]
       ARGV.shift
-    when '-e'
+    when '-e', '--exist', '--non-existent-only'
       since = nil
-    when '-a'
+    when '-a', '--always'
       since = false
+    when '-u', '--update', '--if-modified'
+      since = true
     when '-n', '--dryrun'
       options[:dryrun] = true
     when '--cache-dir'
-- 
cgit v1.2.1


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