THRIFT-2849: spelling errors fixed using codespell tool

Client: All
Patch: Anatol Pomozov

This closes #281
diff --git a/compiler/cpp/src/main.cc b/compiler/cpp/src/main.cc
index 57cd460..c0166a1 100644
--- a/compiler/cpp/src/main.cc
+++ b/compiler/cpp/src/main.cc
@@ -992,7 +992,7 @@
   if (gen_recurse) {
     const vector<t_program*>& includes = program->get_includes();
     for (size_t i = 0; i < includes.size(); ++i) {
-      // Propogate output path from parent to child programs
+      // Propagate output path from parent to child programs
       includes[i]->set_out_path(program->get_out_path(), program->is_out_path_absolute());
 
       generate(includes[i], generator_strings);