The line break is a common reason for site errors.
To fix this, open a text editor (like Notepad) and paste your .htaccess code in.
Be sure that Word Wrap is off (under Format).
Save the file as htaccess.txt
Upload this new file to the proper directory.
Rename the current .htaccess to htaccess-old.txt
Rename htaccess.txt to .htaccess
To avoid further problems, don't open this .htaccess in cPanel anymore.
...Need more help than this? Our engineers are on-staff & happy to help. Contact email@example.com & describe the issue you are having, we'll respond within the hour with simple steps to solving the issue and a quote if you'd prefer to leave it to the experts.