Signed vs unsigned exit code

[blackgnezdo]

% ghci /usr/ports/pobj/ghc-8.10.1/ghc-8.10.1/libraries/process/tests/process009.hs                                                        > :main
ExitFailure 129
Just (ExitFailure 129)
Just (ExitFailure 129)

Expected:

% cat /usr/ports/pobj/ghc-8.10.1/ghc-8.10.1/libraries/process/tests/process009.stdout
ExitFailure (-1)
Just (ExitFailure (-1))
Just (ExitFailure (-1))

This is probably fine and should be fixed in the test suite since ExitFailure Int is documented as
indicates program failure with an exit code. The exact interpretation of the code is operating-system dependent.

[blackgnezdo]

Probably related:

+++ libraries/process/tests/process011.run/process011.run.stdout.normalised     Sun Mar 29 16:24:02 2020
@@ -1,7 +1,7 @@
 ===================== test 1
-ExitFailure (-2)
+ExitFailure 130
 ===================== test 2
-caught: user interrupt
+ExitFailure 130
 ===================== test 3
 shell trapped SIGINT
 ExitFailure 42