core: use default color by default (not white)

lib/vagrant/plugin/v2/command.rb

@@ -188,7 +188,7 @@ module Vagrant
           machines.reverse! if options[:reverse]
 
           # Go through each VM and yield it!
-          color_order = [:white]
+          color_order = [:default]
           color_index = 0
 
           machines.each do |machine|

lib/vagrant/ui.rb

@@ -323,7 +323,7 @@ module Vagrant
         # is bolded.
         bold  = !!opts[:bold]
         colorseq = "#{bold ? 1 : 0 }"
-        if opts[:color]
+        if opts[:color] && opts[:color] != :default
           color = COLORS[opts[:color]]
           colorseq += ";#{color}"
         end

test/unit/vagrant/ui_test.rb

@@ -114,6 +114,11 @@ describe Vagrant::UI::Colored do
       subject.output("foo")
     end
 
+    it "doesn't use a color if default color" do
+      subject.should_receive(:safe_puts).with("\033[0mfoo\033[0m", anything)
+      subject.output("foo", color: :default)
+    end
+
     it "bolds output without color if specified" do
       subject.should_receive(:safe_puts).with("\033[1mfoo\033[0m", anything)
       subject.output("foo", bold: true)