replace spaces by tabs
-rw-r--r-- 514 DESCRIPTION
-rw-r--r-- 267 NAMESPACE
drwxr-xr-x - OLD_MATLAB
drwxr-xr-x - R
-rw-r--r-- 191 README.md
drwxr-xr-x - data
drwxr-xr-x - man
drwxr-xr-x - src