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-rw-r--r--ChangeLog2
-rw-r--r--Doc/Zsh/params.yo3
2 files changed, 5 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog
index 0faf8fda7..cbe4428ae 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,7 @@
2022-04-28 Bart Schaefer <schaefer@zsh.org>
+ * 50138: Doc/Zsh/params.yo: Note ERRNO must be set before use.
+
* 50133 (Bart, PWS, Jun-ichi): Src/input.c, configure.ac: when
lseek(2) is available, use it to check for and rewind read-ahead
for more efficient line-buffered input.
diff --git a/Doc/Zsh/params.yo b/Doc/Zsh/params.yo
index 6d2d41b7a..b543d1c38 100644
--- a/Doc/Zsh/params.yo
+++ b/Doc/Zsh/params.yo
@@ -750,6 +750,9 @@ as set by the most recently failed system call.
This value is system dependent and is intended for debugging
purposes. It is also useful with the tt(zsh/system) module which
allows the number to be turned into a name or message.
+
+To use this parameter, it must first be assigned a value (typically
+0 (zero)). It is initially unset for scripting compatibility.
)
vindex(FUNCNEST)
item(tt(FUNCNEST) <S>)(