Inline static exception text to remove a rescue

Library/Homebrew/exceptions.rb

@@ -240,24 +240,20 @@ class ChecksumMissingError < ArgumentError; end
 
 # raised by Pathname#verify_checksum when verification fails
 class ChecksumMismatchError < RuntimeError
-  attr_accessor :advice
+  attr_reader :expected, :hash_type
-  attr_reader :expected, :actual, :hash_type
 
-  def initialize expected, actual
+  def initialize fn, expected, actual
     @expected = expected
-    @actual = actual
     @hash_type = expected.hash_type.to_s.upcase
 
     super <<-EOS.undent
       #{@hash_type} mismatch
-      Expected: #{@expected}
+      Expected: #{expected}
-      Actual: #{@actual}
+      Actual: #{actual}
+      Archive: #{fn}
+      To retry an incomplete download, remove the file above.
       EOS
   end
-
-  def to_s
-    super + advice.to_s
-  end
 end
 
 class ResourceMissingError < ArgumentError

Library/Homebrew/extend/pathname.rb

@@ -237,7 +237,7 @@ class Pathname
   def verify_checksum expected
     raise ChecksumMissingError if expected.nil? or expected.empty?
     actual = Checksum.new(expected.hash_type, send(expected.hash_type).downcase)
-    raise ChecksumMismatchError.new(expected, actual) unless expected == actual
+    raise ChecksumMismatchError.new(self, expected, actual) unless expected == actual
   end
 
   if '1.9' <= RUBY_VERSION

Library/Homebrew/resource.rb

@@ -91,12 +91,6 @@ class Resource
     opoo "Cannot verify integrity of #{fn.basename}"
     puts "A checksum was not provided for this resource"
     puts "For your reference the SHA1 is: #{fn.sha1}"
-  rescue ChecksumMismatchError => e
-    e.advice = <<-EOS.undent
-    Archive: #{fn}
-    (To retry an incomplete download, remove the file above.)
-    EOS
-    raise e
   end
 
   Checksum::TYPES.each do |cksum|

Library/Homebrew/test/test_resource.rb

@@ -117,7 +117,7 @@ class ResourceTests < Test::Unit::TestCase
     checksum = @resource.sha1(TEST_SHA1)
 
     fn.expects(:verify_checksum).with(checksum).
-      raises(ChecksumMismatchError.new(checksum, Object.new))
+      raises(ChecksumMismatchError.new(fn, checksum, Object.new))
 
     shutup do
       assert_raises(ChecksumMismatchError) do