THRIFT-4508: change windows CI builds to use current MSVC, one cygwin and one mingw build
diff --git a/build/appveyor/simulate-appveyor.bat b/build/appveyor/simulate-appveyor.bat
index b32c0da..8674f40 100644
--- a/build/appveyor/simulate-appveyor.bat
+++ b/build/appveyor/simulate-appveyor.bat
@@ -16,7 +16,7 @@
 :: Helps build thrift by pretending to be appveyor
 :: Usage:
 ::   cd build\appveyor
-::   simulate-appveyor.bat [Debug|Release] [x86|x64] [MINGW|MSVC2015]
+::   simulate-appveyor.bat [Debug|Release] [x86|x64] [CYGWIN|MINGW|MSVC201?]
 ::
 
 @ECHO OFF