chore: comments

src/main.cpp

@@ -315,6 +315,9 @@ std::vector<std::string> completion_candidates(std::span<std::string> tokens,
       dup2(fd[1], STDOUT_FILENO);
       close(fd[0]);
       close(fd[1]);
+      // not using the fork_and_exec here as that does not support setting envs
+      // and easier to do this one off like this -- but maybe better to extend
+      // helper... a bit divided here
       sutils::exec(args[0], args);
     }