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-rw-r--r--stdlib/arg.mli2
1 files changed, 1 insertions, 1 deletions
diff --git a/stdlib/arg.mli b/stdlib/arg.mli
index e6e07316d..22eda40b7 100644
--- a/stdlib/arg.mli
+++ b/stdlib/arg.mli
@@ -94,7 +94,7 @@ val parse :
*)
val parse_dynamic :
- (key * spec * doc) list ref -> anon_fun -> string -> unit
+ (key * spec * doc) list ref -> anon_fun -> usage_msg -> unit
(** Same as {!Arg.parse}, except that the [speclist] argument is a reference
and may be updated during the parsing. A typical use for this feature
is to parse command lines of the form: