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-rw-r--r--Doc/zshparam.17
1 files changed, 6 insertions, 1 deletions
diff --git a/Doc/zshparam.1 b/Doc/zshparam.1
index 8860fb8ac..fde15f575 100644
--- a/Doc/zshparam.1
+++ b/Doc/zshparam.1
@@ -1,4 +1,4 @@
-.TH "ZSHPARAM" "1" "April 9, 2022" "zsh 5\&.8\&.1\&.2-test"
+.TH "ZSHPARAM" "1" "May 1, 2022" "zsh 5\&.8\&.1\&.3-test"
.SH "NAME"
zshparam \- zsh parameters
.\" Yodl file: Zsh/params.yo
@@ -810,6 +810,11 @@ 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 \fBzsh/system\fP module which
allows the number to be turned into a name or message\&.
+.RS
+.PP
+To use this parameter, it must first be assigned a value (typically
+0 (zero))\&. It is initially unset for scripting compatibility\&.
+.RE
.TP
\fBFUNCNEST\fP <S>
Integer\&. If greater than or equal to zero, the maximum nesting depth of