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-rw-r--r--Doc/Zsh/options.yo2
1 files changed, 2 insertions, 0 deletions
diff --git a/Doc/Zsh/options.yo b/Doc/Zsh/options.yo
index aec878774..025368d7c 100644
--- a/Doc/Zsh/options.yo
+++ b/Doc/Zsh/options.yo
@@ -374,6 +374,8 @@ cindex(command execution, enabling)
 item(tt(EXEC) (tt(PLUS()n), ksh: tt(PLUS()n)) <D>)(
 Do execute commands.  Without this option, commands are
 read and checked for syntax errors, but not executed.
+This option cannot be turned off in an interactive shell,
+except when `tt(-n)' is supplied to the shell at startup.
 )
 pindex(EXTENDED_GLOB)
 cindex(globbing, extended)