windows grep messed up

[snippsat]

cmder comes with build in grep.

λ grep --version                                                                            
grep (GNU grep) 2.26                                                                        
Copyright (C) 2016 Free Software Foundation, Inc.                                           
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.              
This is free software: you are free to change and redistribute it.                          
There is NO WARRANTY, to the extent permitted by law.                                       
                                                                                           
Written by Mike Haertel and others, see <http://git.sv.gnu.org/cgit/grep.git/tree/AUTHORS>.