From 4aacf5400e08860ebd6e579c38a08f02d386a65d Mon Sep 17 00:00:00 2001
From: Mike McQuaid <mike@mikemcquaid.com>
Date: Sun, 17 Feb 2013 13:42:45 +0000
Subject: [PATCH] brew-update: show upgrade command on formula parameters.

Closes Homebrew/homebrew#17814.
---
 Library/Homebrew/cmd/update.rb | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Library/Homebrew/cmd/update.rb b/Library/Homebrew/cmd/update.rb
index 62f27e20a2..db8d8d79cb 100644
--- a/Library/Homebrew/cmd/update.rb
+++ b/Library/Homebrew/cmd/update.rb
@@ -6,7 +6,12 @@ module Homebrew extend self
   DEPRECATED_TAPS = ['adamv-alt']
 
   def update
-    abort "This command updates brew itself, and does not take formula names." unless ARGV.named.empty?
+    unless ARGV.named.empty?
+      abort <<-EOS.undent
+        This command updates brew itself, and does not take formula names.
+        Use `brew upgrade <formula>`.
+      EOS
+    end
     abort "Please `brew install git' first." unless which "git"
 
     # ensure GIT_CONFIG is unset as we need to operate on .git/config