Ensure newline at the end of file (#425)

Author: aobolensk

.clang-format

@@ -5,3 +5,6 @@ ColumnLimit: 120
 UseTab: Never
 QualifierAlignment: Left
 PointerAlignment: Right
+InsertNewlineAtEOF: true
+KeepEmptyLines:
+  AtEndOfFile: false

tasks/omp/example/include/ops_omp.hpp

@@ -21,4 +21,4 @@ class TestTaskOpenMP : public ppc::core::Task {
   int rc_size_{};
 };
 
-}  // namespace nesterov_a_test_task_omp
+}  // namespace nesterov_a_test_task_omp

tasks/seq/example/include/ops_seq.hpp

@@ -21,4 +21,4 @@ class TestTaskSequential : public ppc::core::Task {
   int rc_size_{};
 };
 
-}  // namespace nesterov_a_test_task_seq
+}  // namespace nesterov_a_test_task_seq