CLSA-2026-1777545655 vim: Fix of 10 CVEs

CVE-2021-3928: in suggesttriewalk only credit a non-word-char boundary with SCORENONWORD when preword is non-empty, so spell suggestions do not read uninitialized memory behind preword. - CVE-2021-3974: in nfaregmatch NFAMARK / NFAMARKGT / NFAMARKLT, save reginput - regline and re-fetch regline...

CLSA-2022-1654529495 Fixed CVEs in vim: CVE-2022-1785, CVE-2022-1796

CVE-2022-1785: fix out-of-bounds write by disallowing changing window in substitute expression - CVE-2022-1796: fix use after free by making a copy of a line...