libedit: Update to 20210419-3.1

libedit: Update to 20210419-3.1

- Update from 20190324-3.1 to 20210419-3.1
- Update rootfile
- Changelog - note source tarbal version uses date not the version-info
  in the changelog file
   2021-04-19 Jess Thrysoee
    * version-info: 0:65:0
    * all: sync with upstream source
    * src/getline.c,src/sys.h: Provide getline.c implementation if not available
	Patch by Claes Nästén
    * src/makelist: Use Posix locale; mainly to get ASCII character classes in e.g. `tr`
	Patch by Claes Nästén
   * examples/test_filecompletion.c, examples/wtc1.c: err.h not supported by
     Solaris
   2021-02-16 Jess Thrysoee
    * version-info: 0:64:0
    * all: sync with upstream source
   2019-12-31 Jess Thrysoee
    * version-info: 0:63:0
    * configure.ac: Support -ltinfo as split in newer ncurses
	The newer versions of ncurses support building terminfo routines as a split -ltinfo library.
	Patch by Michał Górny
   2019-12-11 Jess Thrysoee
    * version-info: 0:62:0
    * all: sync with upstream source
   2019-10-25 Jess Thrysoee
    * version-info: 0:61:0
    * all: sync with upstream source

Signed-off-by: Adolf Belka <adolf.belka@ipfire.org>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>