Some white space fixing, and comments

IPython/tests/test_genutils.py

@@ -38,8 +38,12 b' except ImportError:'
 
 test_file_path = split(abspath(__file__))[0]
 
+
+#
+# Setup/teardown functions/decorators
 #
 
+
 def setup():
     try:
         os.makedirs("home_test_dir/_ipython")
@@ -76,6 +80,11 b' def teardown_environment():'
 
 with_enivronment = with_setup(setup_environment, teardown_environment)
 
+
+#
+# Tests for get_home_dir
+#
+
 @with_enivronment
 def test_get_home_dir_1():
     """Testcase for py2exe logic, un-compressed lib