Merge bitcoin/bitcoin#34168: qa: Require --exclude for each excluded test

c5825d4b7f qa: Require `--exclude` for each excluded test (Hennadii Stepanov)

Pull request description:

  This PR allows a long `--exclude ...` argument in the `test/functional/test_runner.py` invocation to be split across multiple lines, with optional per-line explanatory comments. I found this useful for the CI scripts in https://github.com/hebasto/bitcoin-core-nightly.

ACKs for top commit:
  l0rinc:
    tested ACK c5825d4b7f
  maflcko:
    review ACK c5825d4b7f 🛄
  achow101:
    ACK c5825d4b7f
  rkrux:
    ACK c5825d4b7f

Tree-SHA512: bcf42848516197978b65df8a8bc68e036a62c9afc6158274eac74a325dc01991eb063a042f940c53ea15a7feb18d4bdfc45d8c71f0ef20c76140b12e07ba3ac5

ci/test/00_setup_env_native_valgrind.sh

@@ -13,7 +13,7 @@ export PIP_PACKAGES="--break-system-packages pycapnp"
 export USE_VALGRIND=1
 export NO_DEPENDS=1
 # bind tests excluded for now, see https://github.com/bitcoin/bitcoin/issues/17765#issuecomment-602068547
-export TEST_RUNNER_EXTRA="--exclude rpc_bind,feature_bind_extra"
+export TEST_RUNNER_EXTRA="--exclude rpc_bind --exclude feature_bind_extra"
 export GOAL="install"
 # TODO enable GUI
 export BITCOIN_CONFIG="\

ci/test/00_setup_env_s390x.sh

@@ -11,7 +11,8 @@ export PACKAGES="python3-zmq"
 export CONTAINER_NAME=ci_s390x
 export CI_IMAGE_NAME_TAG="mirror.gcr.io/ubuntu:24.04"
 export CI_IMAGE_PLATFORM="linux/s390x"
-export TEST_RUNNER_EXTRA="--exclude rpc_bind,feature_bind_extra"  # Excluded for now, see https://github.com/bitcoin/bitcoin/issues/17765#issuecomment-602068547
+# bind tests excluded for now, see https://github.com/bitcoin/bitcoin/issues/17765#issuecomment-602068547
+export TEST_RUNNER_EXTRA="--exclude rpc_bind --exclude feature_bind_extra"
 export RUN_FUNCTIONAL_TESTS=true
 export GOAL="install"
 export BITCOIN_CONFIG="\