Fixed 7 CVEs in vim

CVE-2022-2206: adjust cmdlinerow and msgrow to the value of Rows - CVE-2022-2284: stop visual mode when closing a window - CVE-2022-2285: put a NUL after the typeahead - CVE-2022-2286: check the length of the string - CVE-2022-2287: disallow adding a word with control characters or a trailing...