dialyzer: remove license from expected result

Removes the license comment in expected results to not be considered
part of the expected output. In case of tests programs, one must either
add the license at the end or increment the line number of the results
by 2 (one line the copyright, and one line the license)

lib/dialyzer/test/file_utils.erl

@@ -151,5 +151,13 @@ file_to_lines(File, Acc) ->
     case io:get_line(File, "") of
 	{error, _}=Error -> Error;
 	eof              -> Acc;
-	A                -> file_to_lines(File, [A|Acc])
+	A                ->
+            case A of
+                "%% SPDX-License-Identifier:"++_ ->
+                    file_to_lines(File, Acc);
+                "%% SPDX-FileCopyrightText:"++_ ->
+                    file_to_lines(File, Acc);
+                _ ->
+                    file_to_lines(File, [A|Acc])
+            end
     end.

lib/dialyzer/test/small_SUITE_data/results/abs

@@ -1,3 +1,5 @@
+%% SPDX-License-Identifier: Apache-2.0
+%% SPDX-FileCopyrightText: 2024 Erlang/OTP and its contributors
 
 abs.erl:12:1: Function i1/0 has no local return
 abs.erl:16:5: The pattern 'true' can never match the type 'false'

lib/dialyzer/test/small_SUITE_data/src/abs.erl

@@ -76,3 +76,6 @@ int() ->
 
 float() ->
     math:sqrt(1.0).
+
+%% SPDX-License-Identifier: Apache-2.0
+%% SPDX-FileCopyrightText: 2024 Erlang/OTP and its contributors