sed: Update to version 4.9

sed: Update to version 4.9

- Update from version 4.8 to 4.9
- Update of rootfile not required
- Changelog
    * Noteworthy changes in release 4.9 (2022-11-06) [stable]
	** Bug fixes
		  'sed --follow-symlinks -i' no longer loops forever when its operand
		  is a symbolic link cycle.
		  [bug introduced in sed 4.2]
		  a program with an execution line longer than 2GB can no longer trigger
		  an out-of-bounds memory write.
		  using the R command to read an input line of length longer than 2GB
		  can no longer trigger an out-of-bounds memory read.
		  In locales using UTF-8 encoding, the regular expression '.' no
		  longer sometimes fails to match Unicode characters U+D400 through
		  U+D7FF (some Hangul Syllables, and Hangul Jamo Extended-B) and
		  Unicode characters U+108000 through U+10FFFF (half of Supplemental
		  Private Use Area plane B).
		  [bug introduced in sed 4.8]
		  I/O errors involving temp files no longer confuse sed into using a
		  FILE * pointer after fclosing it, which has undefined behavior in C.
	** New Features
		  The 'r' command now accepts address 0, allowing inserting a file before
		  the first line.
	** Changes in behavior
		   Sed now prints the less-surprising variant in a corner case of
		   POSIX-unspecified behavior.  Before, this would print "n".
		   Now, it prints "X":
		    printf n | sed 'sn\nnXn'; echo

Signed-off-by: Adolf Belka <adolf.belka@ipfire.org>
Reviewed-by: Peter Müller <peter.mueller@ipfire.org>
Reviewed-by: Michael Tremer <michael.tremer@ipfire.org>