The line issues between two lines of code


My hard disk was crashed. I installed new hard disk and new windows. when I installed the atom and downloaded the code from the Hostgator server the codes have a line gap, which is unwanted. How can I get rid of this?

Is there any key combination to do this?
such as shift+ctrl and some letter or may be something else?


Does header.php have the same problem? Do you see these extra lines when you start Atom from the command line with atom --safe?