Lint changes from William Rucklidge.

Change-Id: I34899063edc2fe1f4ed976406448f829a1f210c0

internal/ceres/covariance_impl.cc

diff --git a/internal/ceres/covariance_impl.cc b/internal/ceres/covariance_impl.cc
index cd823b3..907f8ad 100644
--- a/internal/ceres/covariance_impl.cc
+++ b/internal/ceres/covariance_impl.cc
@@ -120,7 +120,7 @@
     ParameterBlock* block2 =
         FindOrDie(parameter_map,
                   const_cast<double*>(original_parameter_block2));
-    
+
     const int block1_size = block1->Size();
     const int block2_size = block2->Size();
     const int block1_local_size = block1->LocalSize();

internal/ceres/covariance_test.cc

diff --git a/internal/ceres/covariance_test.cc b/internal/ceres/covariance_test.cc
index c2b83e3..f50cc57 100644
--- a/internal/ceres/covariance_test.cc
+++ b/internal/ceres/covariance_test.cc
@@ -713,7 +713,7 @@
   //  0   0   0   0
   //  0   0   0   1
 
-  // inv((J*A)'*(J*A))
+  // pinv((J*A)'*(J*A))
   // Computed using octave.
   double expected_covariance[] = {
     0.0, 0.0, 0.0, 0.0,