removed mdash characters from setup.py
diff --git a/setup.py b/setup.py
index 5213ee3..a25f1af 100644
--- a/setup.py
+++ b/setup.py
@@ -57,8 +57,8 @@
 extension modules by inferring type information using compile-time
 introspection.
 
-The main issue with Boost.Python—and the reason for creating such a similar
-project—is Boost. Boost is an enormously large and complex suite of utility
+The main issue with Boost.Python-and the reason for creating such a similar
+project-is Boost. Boost is an enormously large and complex suite of utility
 libraries that works with almost every C++ compiler in existence. This
 compatibility has its cost: arcane template tricks and workarounds are
 necessary to support the oldest and buggiest of compiler specimens. Now that