tests: arch: add option parsing check

* tests/misc/arch.sh: Ensure -- to indicate end of options is accepted.
https://github.com/coreutils/coreutils/pull/191

diff --git a/tests/misc/arch.sh b/tests/misc/arch.sh
index 1700a22fa569039f43c382d757157680c09ef38b..68dc460449500b6acd13973ee4e7f5d17bee19d8 100755 (executable)
--- a/tests/misc/arch.sh
+++ b/tests/misc/arch.sh
@@ -21,7 +21,9 @@ print_ver_ arch
 
 arch > out || fail=1
 uname -m > exp || fail=1
+compare exp out || fail=1
 
+arch -- > out || fail=1
 compare exp out || fail=1
 
 Exit $fail