The existing sed only searched linux_os/ and only matched double-quoted
product names in 'if product in' blocks. This missed:
- Rules in shared/ that gate on product (e.g. PAM OVAL checks)
- Exclusion lists using 'if product not in [...]'
- Single-quoted product names in either form
Extend the find path to linux_os/ and shared/, and add the three
missing -e expressions to cover all four combinations.
