Small fixes from William Rucklidge.

Change-Id: I0be52f0f1e53cedccffe4807dc664a2f3fb4a8e4

docs/source/solving.rst

diff --git a/docs/source/solving.rst b/docs/source/solving.rst
index b7bc0b1..5f3711a 100644
--- a/docs/source/solving.rst
+++ b/docs/source/solving.rst
@@ -1158,7 +1158,7 @@
 
    Type of linear solver used to compute the solution to the linear
    least squares problem in each iteration of the Levenberg-Marquardt
-   algorithm. If Ceres is build with support for ``SuiteSparse`` or
+   algorithm. If Ceres is built with support for ``SuiteSparse`` or
    ``CXSparse`` or ``Eigen``'s sparse Cholesky factorization, the
    default is ``SPARSE_NORMAL_CHOLESKY``, it is ``DENSE_QR``
    otherwise.

internal/ceres/schur_complement_solver.cc

diff --git a/internal/ceres/schur_complement_solver.cc b/internal/ceres/schur_complement_solver.cc
index 33f2d8e..d2aa168 100644
--- a/internal/ceres/schur_complement_solver.cc
+++ b/internal/ceres/schur_complement_solver.cc
@@ -276,7 +276,7 @@
   LinearSolver::Summary summary;
   summary.num_iterations = 0;
   summary.termination_type = LINEAR_SOLVER_FATAL_ERROR;
-  summary.message = "Ceres was not built with SuiteSparse support."
+  summary.message = "Ceres was not built with SuiteSparse support. "
       "Therefore, SPARSE_SCHUR cannot be used with SUITE_SPARSE";
   return summary;
 
@@ -383,7 +383,7 @@
   LinearSolver::Summary summary;
   summary.num_iterations = 0;
   summary.termination_type = LINEAR_SOLVER_FATAL_ERROR;
-  summary.message = "Ceres was not built with CXSparse support."
+  summary.message = "Ceres was not built with CXSparse support. "
       "Therefore, SPARSE_SCHUR cannot be used with CX_SPARSE";
   return summary;
 
@@ -440,9 +440,9 @@
   summary.num_iterations = 0;
   summary.termination_type = LINEAR_SOLVER_FATAL_ERROR;
   summary.message =
-      "SPARSE_SCHUR cannot be used with EIGEN_SPARSE."
-      "Ceres was not built with support for"
-      "Eigen's SimplicialLDLT decomposition."
+      "SPARSE_SCHUR cannot be used with EIGEN_SPARSE. "
+      "Ceres was not built with support for "
+      "Eigen's SimplicialLDLT decomposition. "
       "This requires enabling building with -DEIGENSPARSE=ON.";
   return summary;
 

internal/ceres/sparse_normal_cholesky_solver.cc

diff --git a/internal/ceres/sparse_normal_cholesky_solver.cc b/internal/ceres/sparse_normal_cholesky_solver.cc
index 42054e5..0940815 100644
--- a/internal/ceres/sparse_normal_cholesky_solver.cc
+++ b/internal/ceres/sparse_normal_cholesky_solver.cc
@@ -132,9 +132,9 @@
   summary.num_iterations = 0;
   summary.termination_type = LINEAR_SOLVER_FATAL_ERROR;
   summary.message =
-      "SPARSE_NORMAL_CHOLESKY cannot be used with EIGEN_SPARSE"
-      "because Ceres was not built with support for"
-      "Eigen's SimplicialLDLT decomposition."
+      "SPARSE_NORMAL_CHOLESKY cannot be used with EIGEN_SPARSE "
+      "because Ceres was not built with support for "
+      "Eigen's SimplicialLDLT decomposition. "
       "This requires enabling building with -DEIGENSPARSE=ON.";
   return summary;
 
@@ -229,8 +229,8 @@
   summary.num_iterations = 0;
   summary.termination_type = LINEAR_SOLVER_FATAL_ERROR;
   summary.message =
-      "SPARSE_NORMAL_CHOLESKY cannot be used with CX_SPARSE"
-      "because Ceres was not built with support for CXSparse."
+      "SPARSE_NORMAL_CHOLESKY cannot be used with CX_SPARSE "
+      "because Ceres was not built with support for CXSparse. "
       "This requires enabling building with -DCXSPARSE=ON.";
 
   return summary;
@@ -311,8 +311,8 @@
   summary.num_iterations = 0;
   summary.termination_type = LINEAR_SOLVER_FATAL_ERROR;
   summary.message =
-      "SPARSE_NORMAL_CHOLESKY cannot be used with SUITE_SPARSE"
-      "because Ceres was not built with support for SuiteSparse."
+      "SPARSE_NORMAL_CHOLESKY cannot be used with SUITE_SPARSE "
+      "because Ceres was not built with support for SuiteSparse. "
       "This requires enabling building with -DSUITESPARSE=ON.";
   return summary;