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-rw-r--r--Doc/Zsh/builtins.yo6
1 files changed, 5 insertions, 1 deletions
diff --git a/Doc/Zsh/builtins.yo b/Doc/Zsh/builtins.yo
index a7afe42cf..61dc6986f 100644
--- a/Doc/Zsh/builtins.yo
+++ b/Doc/Zsh/builtins.yo
@@ -1872,7 +1872,11 @@ ifnzman(noderef(Local Parameters))\
 retain their special attributes when made local.
 
 For each var(name)tt(=)var(value) assignment, the parameter
-var(name) is set to var(value).
+var(name) is set to var(value).  If the assignment is omitted and var(name)
+does em(not) refer to an existing parameter, a new parameter is intialized
+to empty string, zero, or empty array (as appropriate), em(unless) the
+shell option tt(TYPESET_TO_UNSET) is set.  When that option is set,
+the parameter attributes are recorded but the parameter remains unset.
 
 If the shell option tt(TYPESET_SILENT) is not set, for each remaining
 var(name) that refers to a parameter that is already set, the name and