52154, 52155: Implement, document, and test non-forking command substitution.

Comprises workers/51957, 51985, 51987, 51988, 51993, 52131, 52139, plus
fixes for return values, parse errors, and trailing newlines (which were
incorrectly removed) in ${ ... }

1 files changed, 6 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index 27dcf0e58..0390ea2b5 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,11 @@
 2023-09-16  Bart Schaefer  <schaefer@zsh.org>
 
+	* 52155: Test/D10nofork.ztst: Tests for non-forking substitution.
+
+	* 52154: Doc/Zsh/expn.yo, Src/lex.c, Src/subst.c:  implement
+	and document non-forking command substitutions ${|...} and
+	${ ... }.  Based on Sebastian Gniazdowski: 51702.
+
 	* 52153: Src/input.c, Src/Modules/mapfile.c: $mapfile[fname]
 	should not trim newlines (only applies when not HAVE_MMAP)