[NaCl SDK] A bunch of spelling fixes.

native_client_sdk/src/examples/hello_world_instance3d/matrix.cc

Index: native_client_sdk/src/examples/hello_world_instance3d/matrix.cc
diff --git a/native_client_sdk/src/examples/hello_world_instance3d/matrix.cc b/native_client_sdk/src/examples/hello_world_instance3d/matrix.cc
index 32200c73d4924eb321fd19049c763926937039bc..a389581622b1b54a3a2c83f5a5cd6936c27f5904 100644
--- a/native_client_sdk/src/examples/hello_world_instance3d/matrix.cc
+++ b/native_client_sdk/src/examples/hello_world_instance3d/matrix.cc
@@ -58,7 +58,7 @@ void identity_matrix(Matrix_t mat) {
 
 void multiply_matrix(const Matrix_t a, const Matrix_t b, Matrix_t mat) {
   // Generate to a temporary first in case the output matrix and input
-  // matrix are thes same.
+  // matrix are the same.
   Matrix_t out;
 
   out[0]  = a[0] * b[0]  + a[4] * b[1]  + a[8] * b[2]   + a[12] * b[3];