What do you want to do about modified configuration file grub?            │  
 │                                                                           │  
 │        install the package maintainer's version                           │  
 │        keep the local version currently installed                         │  
 │        show the differences between the versions                          │  
 │        show a side-by-side difference between the versions                │  
 │        show a 3-way difference between available versions                 │  
 │        do a 3-way merge between available versions (experimental)         │  
 │        start a new shell to examine the situation