Typo

Author: vouillon

compiler/bin-wasm_of_ocaml/cmd_arg.ml

@@ -176,7 +176,7 @@ let options_runtime_only =
   in
   let no_sourcemap =
     let doc =
-      "Don't generate source map. All other source map related flags will be be ignored."
+      "Don't generate source map. All other source map related flags will be ignored."
     in
     Arg.(value & flag & info [ "no-sourcemap"; "no-source-map" ] ~doc)
   in