Change doc comment

Signed-off-by: Ulysse Gérard <[email protected]>

src/dune_rules/cxx_flags.mli

@@ -1,14 +1,6 @@
 (** This module contains a small database of flags that is used when compiling C
-    and C++ stubs. Indeed, both the C++ flags and the output arguments can
-    differ from one compiler to another. *)
+    and C++ stubs. *)
 
-(** [default_with_output_args ~kind ctx destination] returns both the list of
-    default flags to compile C and C++ stubs and the correct output arguments
-    depending on the default C compiler:
-
-    - For CXX the default flags will depend on the detected compiler
-    - For C the flags are the ones from [ocamlc -config]
-
-    The returned flag list also include the feedback-directed optimizations
-    flags (FDO). *)
+(** [get_flags c_compiler] returns the necessary flags to turn this compiler
+    into a c++ compiler for some of the most common compilers *)
 val get_flags : Ocaml_config.Ccomp_type.t -> string list