fix script generation for executables

Author: fafhrd91

CHANGES.rst

@@ -1,5 +1,11 @@
 CHANGES
-=======
+^^^^^^^
+
+0.8.1 (2017-09-08)
+------------------
+
+- Fix script generation for executables
+
 
 0.8.0 (2017-09-05)
 ------------------

setuptools_rust/extension.py

@@ -123,10 +123,10 @@ def install_script(self, ext_path):
 
 def run():
     path = os.path.split(__file__)[0]
-    file = os.path.join(path, "%(name)")
+    name = os.path.split(sys.argv[0])[1]
+    file = os.path.join(path, name)
     if os.path.isfile(file):
         os.execv(file, sys.argv)
     else:
-        print("Can not execute %(name)")
-
+        print("Can not execute '%s'" % name)
 """