[C++] Store command results with no output
[C++] Store command results with no output

Instead, we stop storing results of commands which are
specified by --ignore_dirty

danw/kati,pombredanne/kati,shinh/kati,google/kati,danw/kati,shinh/kati,shinh/kati,colincross/kati,shinh/kati,colincross/kati,google/kati,colincross/kati,google/kati,colincross/kati,pombredanne/kati,google/kati,colincross/kati,danw/kati,pombredanne/kati,shinh/kati,shinh/kati,pombredanne/kati,danw/kati,pombredanne/kati,colincross/kati,pombredanne/kati,danw/kati,google/kati,danw/kati