Remove ,newline='\n' so this branch works for testing

This change is already merged but add to this branch for testing

archinstall/lib/installer.py

@@ -153,7 +153,7 @@ class Installer():
 		self.log(f"Updating {self.mountpoint}/etc/fstab", level=LOG_LEVELS.Info)
 		
 		fstab = sys_command(f'/usr/bin/genfstab {flags} {self.mountpoint}').trace_log
-		with open(f"{self.mountpoint}/etc/fstab", 'ab',newline='\n') as fstab_fh:
+		with open(f"{self.mountpoint}/etc/fstab", 'ab') as fstab_fh:
 			fstab_fh.write(fstab)
 
 		if not os.path.isfile(f'{self.mountpoint}/etc/fstab'):