Fix wget HSTS database error

If the wget HSTS database file permissions get changed, an error may occur on using wget like:

Will not apply HSTS. The HSTS database must be a regular and non-world-writable file.
ERROR: could not open HSTS store at '~/.wget-hsts'. HSTS will be disabled.

HSTS can enhance security, so normally we’d like to have HSTS working.

Fix

Make the .wget-hsts file have normal file permissions by:

chmod 644 ~/.wget-hsts