12 files changed, 16 insertions, 16 deletions
diff --git a/guides/bug_report_templates/active_record_migrations_gem.rb b/guides/bug_report_templates/active_record_migrations_gem.rb
index f568a111f6..ba80e6b4ad 100644
--- a/guides/bug_report_templates/active_record_migrations_gem.rb
+++ b/guides/bug_report_templates/active_record_migrations_gem.rb
@@ -62,4 +62,4 @@ class BugTest < Minitest::Test
 
     assert_equal "decimal(10,0)", Payment.columns.last.sql_type
   end
-end
-\ No newline at end of file
+end
diff --git a/guides/bug_report_templates/active_record_migrations_master.rb b/guides/bug_report_templates/active_record_migrations_master.rb
index ef7b42e0a6..13a375d1ba 100644
--- a/guides/bug_report_templates/active_record_migrations_master.rb
+++ b/guides/bug_report_templates/active_record_migrations_master.rb
@@ -61,4 +61,4 @@ class BugTest < Minitest::Test
 
     assert_equal "decimal(10,0)", Payment.columns.last.sql_type
   end
-end
-\ No newline at end of file
+end
diff --git a/guides/bug_report_templates/benchmark.rb b/guides/bug_report_templates/benchmark.rb
index ae51d7027f..54433b34dd 100644
--- a/guides/bug_report_templates/benchmark.rb
+++ b/guides/bug_report_templates/benchmark.rb
@@ -42,8 +42,8 @@ SCENARIOS.each_pair do |name, value|
   puts
 
   Benchmark.ips do |x|
-    x.report('blank?')      { value.blank? }
-    x.report('fast_blank?') { value.fast_blank? }
+    x.report("blank?")      { value.blank? }
+    x.report("fast_blank?") { value.fast_blank? }
     x.compare!
   end
 end
diff --git a/guides/rails_guides/generator.rb b/guides/rails_guides/generator.rb
index 39a57191eb..a818ca9d72 100644
--- a/guides/rails_guides/generator.rb
+++ b/guides/rails_guides/generator.rb
@@ -68,7 +68,7 @@ module RailsGuides
 
     GUIDES_RE = /\.(?:erb|md)\z/
 
-    def initialize(output=nil)
+    def initialize(output = nil)
       set_flags_from_environment
 
       if kindle?
diff --git a/guides/rails_guides/helpers.rb b/guides/rails_guides/helpers.rb
index 888b51b1ef..6f4b0b492c 100644
--- a/guides/rails_guides/helpers.rb
+++ b/guides/rails_guides/helpers.rb
@@ -26,7 +26,7 @@ module RailsGuides
       documents.reject { |document| document["work_in_progress"] }
     end
 
-    def docs_for_menu(position=nil)
+    def docs_for_menu(position = nil)
       if position.nil?
         documents_by_section
       elsif position == "L"
diff --git a/guides/rails_guides/indexer.rb b/guides/rails_guides/indexer.rb
index 56df6a5842..c58b6b85a2 100644
--- a/guides/rails_guides/indexer.rb
+++ b/guides/rails_guides/indexer.rb
@@ -17,7 +17,7 @@ module RailsGuides
 
     private
 
-      def process(string, current_level=3, counters=[1])
+      def process(string, current_level = 3, counters = [1])
         s = StringScanner.new(string)
 
         level_hash = {}
diff --git a/guides/rails_guides/kindle.rb b/guides/rails_guides/kindle.rb
index 6fb8183cb1..4b73ae9518 100644
--- a/guides/rails_guides/kindle.rb
+++ b/guides/rails_guides/kindle.rb
@@ -56,7 +56,7 @@ module Kindle
       h2["id"] = h2.inner_text.gsub(/\s/, "-")
     end
     add_head_section fdoc, "Front Matter"
-    File.open("frontmatter.html","w") { |f| f.puts fdoc.to_html }
+    File.open("frontmatter.html", "w") { |f| f.puts fdoc.to_html }
     html_pages.unshift "frontmatter.html"
   end
 
@@ -68,7 +68,7 @@ module Kindle
       title = doc.at("title").inner_text.gsub("Ruby on Rails Guides: ", "")
       title = page.capitalize.gsub(".html", "") if title.strip == ""
       File.open("sections/%03d/_section.txt" % section_idx, "w") { |f| f.puts title }
-      doc.xpath("//h3[@id]").each_with_index do |h3,item_idx|
+      doc.xpath("//h3[@id]").each_with_index do |h3, item_idx|
         subsection = h3.inner_text
         content = h3.xpath("./following-sibling::*").take_while { |x| x.name != "h3" }.map(&:to_html)
         item = Nokogiri::HTML(h3.to_html + content.join("\n"))
diff --git a/guides/rails_guides/levenshtein.rb b/guides/rails_guides/levenshtein.rb
index e947150364..40c6a5c372 100644
--- a/guides/rails_guides/levenshtein.rb
+++ b/guides/rails_guides/levenshtein.rb
@@ -20,12 +20,12 @@ module RailsGuides
       str2_codepoint_enumerable = str2.each_codepoint
 
       str1.each_codepoint.with_index do |char1, i|
-        e = i+1
+        e = i + 1
 
         str2_codepoint_enumerable.with_index do |char2, j|
           cost = (char1 == char2) ? 0 : 1
           x = [
-               d[j+1] + 1, # insertion
+               d[j + 1] + 1, # insertion
                e + 1,      # deletion
                d[j] + cost # substitution
               ].min
diff --git a/guides/rails_guides/markdown/renderer.rb b/guides/rails_guides/markdown/renderer.rb
index eebd9ac730..deab741023 100644
--- a/guides/rails_guides/markdown/renderer.rb
+++ b/guides/rails_guides/markdown/renderer.rb
@@ -1,7 +1,7 @@
 module RailsGuides
   class Markdown
     class Renderer < Redcarpet::Render::HTML
-      def initialize(options={})
+      def initialize(options = {})
         super
       end
 
diff --git a/guides/source/active_record_migrations.md b/guides/source/active_record_migrations.md
index d91c9bd606..815bdb5f4d 100644
--- a/guides/source/active_record_migrations.md
+++ b/guides/source/active_record_migrations.md
@@ -229,7 +229,7 @@ As always, what has been generated for you is just a starting point. You can add
 or remove from it as you see fit by editing the
 `db/migrate/YYYYMMDDHHMMSS_add_details_to_products.rb` file.
 
-Also, the generator accepts column type as `references`(also available as
+Also, the generator accepts column type as `references` (also available as
 `belongs_to`). For instance:
 
 ```bash
diff --git a/guides/source/configuring.md b/guides/source/configuring.md
index c625cf67f6..b0334bfe4a 100644
--- a/guides/source/configuring.md
+++ b/guides/source/configuring.md
@@ -175,11 +175,11 @@ pipeline is enabled. It is set to `true` by default.
 
 * `config.assets.manifest` defines the full path to be used for the asset precompiler's manifest file. Defaults to a file named `manifest-<random>.json` in the `config.assets.prefix` directory within the public folder.
 
-* `config.assets.digest` enables the use of MD5 fingerprints in asset names. Set to `true` by default.
+* `config.assets.digest` enables the use of SHA256 fingerprints in asset names. Set to `true` by default.
 
 * `config.assets.debug` disables the concatenation and compression of assets. Set to `true` by default in `development.rb`.
 
-* `config.assets.version` is an option string that is used in MD5 hash generation. This can be changed to force all files to be recompiled.
+* `config.assets.version` is an option string that is used in SHA256 hash generation. This can be changed to force all files to be recompiled.
 
 * `config.assets.compile` is a boolean that can be used to turn on live Sprockets compilation in production.
 
diff --git a/guides/w3c_validator.rb b/guides/w3c_validator.rb
index 2ce27e2e16..c0a32c6b91 100644
--- a/guides/w3c_validator.rb
+++ b/guides/w3c_validator.rb
@@ -81,7 +81,7 @@ module RailsGuides
             error_summary += "\n  #{name}"
             error_detail += "\n\n  #{name} has #{errors.size} validation error(s):\n"
             errors.each do |error|
-              error_detail += "\n    "+error.to_s.delete("\n")
+              error_detail += "\n    " + error.to_s.delete("\n")
             end
           end