* All the downstream patches have been upstreamed, so they are being
removed with this commit.
* It introduces alternatives to switch between different versions of
ksh.
Resolves: #1700777
- do not resend signal on termination (#1092132)
- fix brace expansion on/off
- fix incorrect rounding of numsers 0.5 < |x| <1.0 in printf (#1080940)
- fix parser errors related to the end of the here-document marker
- ksh hangs when command substitution fills out the pipe buffer
- using typeset -l with a restricted variabled caused segmentation fault
- monitor mode was documented incorrectly
- do not crash when unsetting running function from another one (#1105139)
- should report an error when trying to cd into directory without execution bit
- job locking mechanism did not survive compiler optimization
- reading a file via command substitution did not work when any of stdin,
stdout or stderr were closed (#1070308)
- fix lexical parser crash
