Copy-paste fix in setup.py

setup.py

@@ -10,7 +10,7 @@ try:
 finally:
     version_file.close()
 
-exec(compile(version_file_contents, "pyopencl/version.py", 'exec'), ver_dic)
+exec(compile(version_file_contents, "loopy/version.py", 'exec'), ver_dic)
 
 setup(name="loo.py",
       version=ver_dic["VERSION_TEXT"],