Spelling fixes

Spelling errors found using github.com/lucasdemarchi/codespell
A tool to fix common misspellings.
This tool is licensed under GNU General Public License, version 2.

Change-Id: Iefb2ad70d313a4800cd413c7c2e5e2154bec49fb
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>
diff --git a/presence/pfpgen.py b/presence/pfpgen.py
index 187be32..efae7cc 100755
--- a/presence/pfpgen.py
+++ b/presence/pfpgen.py
@@ -185,7 +185,7 @@
 
     def setup(self, objs):
         '''All policies have an associated fan and methods.
-        Resolve the indicies.'''
+        Resolve the indices.'''
 
         sensors = []
         for s in self.sensors:
@@ -323,7 +323,7 @@
             # is just an array index.
             #
             # At this point all objects have been created but references
-            # have not been resolved to array indicies.  Instruct objects
+            # have not been resolved to array indices.  Instruct objects
             # to do that now.
             for cls, items in objs.items():
                 for obj in items: