Tidy up code formatting a bit more

Enable the following Pylint warnings:

  C0322: Operator not preceded by a space
  C0323: Operator not followed by a space
  C0324: Comma not followed by a space

And make the necessary fixes.

Change-Id: I74d74283ad5138cbaf28d492b18614eb355ff9fe
diff --git a/subcmds/help.py b/subcmds/help.py
index 57fb3cc..15aab7f 100644
--- a/subcmds/help.py
+++ b/subcmds/help.py
@@ -126,7 +126,7 @@
 
             p('%s', title)
             self.nl()
-            p('%s', ''.ljust(len(title),section_type[0]))
+            p('%s', ''.ljust(len(title), section_type[0]))
             self.nl()
             continue