Update ocamlformat version.

.ocamlformat

-version=0.19.0
+version=0.20.0
 exp-grouping=parens
 if-then-else=keyword-first
 max-indent=2

src/language.ml

@@ -16,7 +16,6 @@ type ioshape = {
 }
 
 let loaded_nets = Why3.Term.Hls.create 10
-
 let lookup_loaded_nets = Why3.Term.Hls.find_opt loaded_nets
 
 let register_astuple nb_inputs nb_outputs filename env =