scripts/check-kernel-fix: fix actions_file handling (again)
    
    ./scripts/check-kernel-fix -v CVE-2023-52976 SLE15-SP2-LTSS SLE15-SP3-LTSS
    Security fix for CVE-2023-52976 bsc#1240283 with CVSS 5.5
    = 966d47e1f27c ("efi: fix potential NULL deref in efi_mem_reserve_persistent") merged v6.2-rc7~15^2
    Fixes: 18df7577adae ("efi/memreserve: deal with memreserve entries in unmapped memory") merged v5.2-rc7~6^2^2~3
    Experts candidates:  jlee@suse.com (76) subsystem/role="EFI"
    Link: https://git.kernel.org/linus/966d47e1f27c45507c5df82b2a2157e5a4fd3909
    SLE15-SP2-LTSS: missing_commit_nope_cvss
    SLE15-SP3-LTSS: missing_commit_nope_cvss
    	WW drivers/firmware/efi/efi not supported.
    	WW all modules unsupported
    ACTION NEEDED!
    
    Potential git-fixes for 966d47e1f27c45507c5df82b2a2157e5a4fd3909
    Nothing found
    
    So there is no action needed here because neither of the branch is
    eligible. The issue is that missing_commit_nope_cvss matches the
    [[ =~.*missing_commit ]] pattern. Fix it by making it word bounded.
    
    New output is
    ./scripts/check-kernel-fix -v CVE-2023-52976 SLE15-SP2-LTSS SLE15-SP3-LTSS
    Security fix for CVE-2023-52976 bsc#1240283 with CVSS 5.5
    = 966d47e1f27c ("efi: fix potential NULL deref in efi_mem_reserve_persistent") merged v6.2-rc7~15^2
    Fixes: 18df7577adae ("efi/memreserve: deal with memreserve entries in unmapped memory") merged v5.2-rc7~6^2^2~3
    Experts candidates:  jlee@suse.com (76) subsystem/role="EFI"
    Link: https://git.kernel.org/linus/966d47e1f27c45507c5df82b2a2157e5a4fd3909
    SLE15-SP2-LTSS: missing_commit_nope_cvss
    SLE15-SP3-LTSS: missing_commit_nope_cvss
    	WW drivers/firmware/efi/efi not supported.
    	WW all modules unsupported
    NO CODESTREAM AFFECTED