Lint and other cleanups from William Rucklidge

Change-Id: I7fb23c2db85f0f121204560b79f1966f3d584431
diff --git a/internal/ceres/generate_partitioned_matrix_view_specializations.py b/internal/ceres/generate_partitioned_matrix_view_specializations.py
index 1ee8b8e..c6ab573 100644
--- a/internal/ceres/generate_partitioned_matrix_view_specializations.py
+++ b/internal/ceres/generate_partitioned_matrix_view_specializations.py
@@ -36,7 +36,7 @@
 # This script creates two sets of files.
 #
 # 1. partitioned_matrix_view_x_x_x.cc
-# where, the x indicates the template parameters and
+# where the x indicates the template parameters and
 #
 # 2. partitioned_matrix_view.cc
 #