Proper clear line text for Cygwin

CHANGELOG.md

@@ -55,6 +55,8 @@ BUG FIXES:
   - Assume Cygwin has a TTY for asking for input. [GH-1430]
   - Expand Cygwin paths to Windows paths for calls to VBoxManage and
     for VirtualBox shared folders.
+  - Output the proper clear line text for shells in Cygwin when
+    reporting dynamic progress.
 
 ## 1.1.6 (April 3, 2013)
 

lib/vagrant/ui.rb

@@ -113,7 +113,7 @@ module Vagrant
 
       def clear_line
         reset = "\r"
-        reset += "\e[0K" unless Util::Platform.windows?
+        reset += "\e[0K" if Util::Platform.windows? && !Util::Platform.cygwin?
 
         info(reset, :new_line => false)
       end