Lint cleanup from Jim Roseborough.

Change-Id: I6ddbf5c3d66595d27f7967a309768e5f5dd7e1fd

internal/ceres/corrector.cc

diff --git a/internal/ceres/corrector.cc b/internal/ceres/corrector.cc
index cbf49ec..f9deb87 100644
--- a/internal/ceres/corrector.cc
+++ b/internal/ceres/corrector.cc
@@ -85,7 +85,7 @@
   }
 
   // We now require that the first derivative of the loss function be
-  // positive only if the second derivative is non-zero. This is
+  // positive only if the second derivative is positive. This is
   // because when the second derivative is non-positive, we do not use
   // the second order correction suggested by BANS and instead use a
   // simpler first order strategy which does not use a division by the

internal/ceres/covariance_impl.cc

diff --git a/internal/ceres/covariance_impl.cc b/internal/ceres/covariance_impl.cc
index c302181..6fe7a80 100644
--- a/internal/ceres/covariance_impl.cc
+++ b/internal/ceres/covariance_impl.cc
@@ -447,7 +447,8 @@
     return false;
   }
 
-  LinearSolverTerminationType termination_type = ss.Cholesky(&cholmod_jacobian_view, factor);
+  LinearSolverTerminationType termination_type =
+      ss.Cholesky(&cholmod_jacobian_view, factor);
   event_logger.AddEvent("Numeric Factorization");
 
   if (termination_type != TOLERANCE) {

internal/ceres/levenberg_marquardt_strategy.cc

diff --git a/internal/ceres/levenberg_marquardt_strategy.cc b/internal/ceres/levenberg_marquardt_strategy.cc
index 009a951..2227da6 100644
--- a/internal/ceres/levenberg_marquardt_strategy.cc
+++ b/internal/ceres/levenberg_marquardt_strategy.cc
@@ -108,8 +108,8 @@
 
   if (linear_solver_summary.termination_type == FATAL_ERROR) {
     LOG(WARNING) << "Linear solver fatal error.";
-  } else  if (linear_solver_summary.termination_type == FAILURE ||
-              !IsArrayValid(num_parameters, step)) {
+  } else if (linear_solver_summary.termination_type == FAILURE ||
+             !IsArrayValid(num_parameters, step)) {
     LOG(WARNING) << "Linear solver failure. Failed to compute a finite step.";
     linear_solver_summary.termination_type = FAILURE;
   } else {