Fix 'brew style' issues

Library/Homebrew/cask/lib/hbc/cli/internal_stanza.rb

@@ -71,7 +71,7 @@ module Hbc
             next
           end
 
-          if value == nil || (value.kind_of?(Array) && value.empty?)
+          if value.nil? || (value.is_a?(Array) && value.empty?)
             opoo "no such stanza '#{stanza}' on Cask '#{cask}'" unless quiet?
             puts ""
             raise ArgumentError, "no such stanza '#{stanza}' on Cask '#{cask}'"

Library/Homebrew/test/cask/cli/internal_stanza_spec.rb

@@ -1,28 +1,27 @@
 describe Hbc::CLI::InternalStanza, :cask do
-
   it "shows stanza of the Specified Cask" do
-    command = described_class.new("gpg", "with-gpg");
+    command = described_class.new("gpg", "with-gpg")
     command.run
-    # TODO check result
+    # TODO: check result
   end
 
   it "raises an exception when stanza is invalid" do
-    expect {
-     described_class.new("invalid_stanza", "with-gpg");
-    }.to raise_error(/Illegal stanza/);
+    expect do
+      described_class.new("invalid_stanza", "with-gpg")
+    end.to raise_error(/Illegal stanza/)
   end
 
   it "raises an exception when normal stanza is not present on cask" do
-     command = described_class.new("caveats", "with-gpg");
-     expect {
-       command.run
-     }.to raise_error(/no such stanza/)
+    command = described_class.new("caveats", "with-gpg")
+    expect do
+      command.run
+    end.to raise_error(/no such stanza/)
   end
 
   it "raises an exception when artifact stanza is not present on cask" do
-     command = described_class.new("zap", "with-gpg");
-     expect {
-       command.run
-     }.to raise_error(/no such stanza/)
+    command = described_class.new("zap", "with-gpg")
+    expect do
+      command.run
+    end.to raise_error(/no such stanza/)
   end
 end