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-rw-r--r--Doc/Zsh/builtins.yo1
1 files changed, 1 insertions, 0 deletions
diff --git a/Doc/Zsh/builtins.yo b/Doc/Zsh/builtins.yo
index 39ba4812b..2d902f336 100644
--- a/Doc/Zsh/builtins.yo
+++ b/Doc/Zsh/builtins.yo
@@ -448,6 +448,7 @@ Checks the var(arg)s for legal options.  If the var(arg)s are omitted,
 use the positional parameters.  A valid option argument
 begins with a `tt(PLUS())' or a `tt(-)'.  An argument not beginning with
 a `tt(PLUS())' or a `tt(-)', or the argument `tt(--)', ends the options.
+Note that a single `tt(-)' is not considered a valid option argument.
 var(optstring) contains the letters that tt(getopts)
 recognizes.  If a letter is followed by a `tt(:)', that option
 is expected to have an argument.  The options can be