Prefer english constants to perl symbols (style).

emeril.gemspec

@@ -2,6 +2,7 @@
 lib = File.expand_path('../lib', __FILE__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'emeril/version'
+require "English"
 
 Gem::Specification.new do |spec|
   spec.name          = "emeril"
@@ -13,7 +14,7 @@ Gem::Specification.new do |spec|
   spec.homepage      = "http://fnichol.github.io/emeril/"
   spec.license       = "MIT"
 
-  spec.files         = `git ls-files`.split($/)
+  spec.files         = `git ls-files`.split($INPUT_RECORD_SEPARATOR)
   spec.executables   = []
   spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
   spec.require_paths = ["lib"]

lib/emeril/git_tagger.rb

@@ -1,5 +1,7 @@
 # -*- encoding: utf-8 -*-
 
+require "English"
+
 require 'emeril/logging'
 
 module Emeril
@@ -100,11 +102,11 @@ def sh_with_code(cmd, &block)
       debug(cmd)
       Dir.chdir(source_path) {
         outbuf = `#{cmd}`
-        if $? == 0
+        if $CHILD_STATUS == 0
           block.call(outbuf) if block
         end
       }
-      [outbuf, $?]
+      [outbuf, $CHILD_STATUS]
     end
 
     def tag_version