Fix, not ignore, shellcheck SC1091 warnings

This is easy to fix (but we have to specify -x).

Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>

Makefile

@@ -423,10 +423,10 @@ lint:
 	shellcheck --version
 	shellcheck scripts/*.sh
 	shellcheck scripts/ci/*.sh scripts/ci/apt-install
-	shellcheck test/others/crit/*.sh
-	shellcheck test/others/libcriu/*.sh
-	shellcheck test/others/crit/*.sh test/others/criu-coredump/*.sh
-	shellcheck test/others/config-file/*.sh
+	shellcheck -x test/others/crit/*.sh
+	shellcheck -x test/others/libcriu/*.sh
+	shellcheck -x test/others/crit/*.sh test/others/criu-coredump/*.sh
+	shellcheck -x test/others/config-file/*.sh
 	codespell
 	# Do not append \n to pr_perror or fail
 	! git --no-pager grep -E '^\s*\<(pr_perror|fail)\>.*\\n"'

scripts/ci/docker-test.sh

@@ -1,6 +1,6 @@
 #!/bin/bash
 
-# shellcheck disable=SC1091,SC2015
+# shellcheck disable=SC2015
 
 set -x -e -o pipefail
 
@@ -19,6 +19,7 @@ add-apt-repository \
 
 ./apt-install docker-ce
 
+# shellcheck source=/dev/null
 . /etc/lsb-release
 
 # docker checkpoint and restore is an experimental feature

test/others/config-file/run.sh

@@ -11,7 +11,7 @@
 
 set -xbm
 
-#shellcheck disable=SC1091
+# shellcheck source=test/others/env.sh
 source ../env.sh
 
 if [ ! -d /etc/criu ]; then

test/others/crit/test.sh

@@ -1,8 +1,9 @@
 #!/bin/bash
-# shellcheck disable=SC1091,SC2002
+# shellcheck disable=SC2002
 
 set -x
 
+# shellcheck source=test/others/env.sh
 source ../env.sh
 
 images_list=""

test/others/criu-coredump/test.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 
 set -x
-# shellcheck disable=SC1091
+# shellcheck source=test/others/env.sh
 source ../env.sh || exit 1
 
 function gen_imgs {

test/others/libcriu/run.sh

@@ -9,7 +9,7 @@ TEST_LOG="${TEST_DIR}/test.log"
 DUMP_LOG="${TEST_DIR}/dump.log"
 RESTORE_LOG="${TEST_DIR}/restore.log"
 
-# shellcheck disable=1091
+# shellcheck source=test/others/env.sh
 source "${MAIN_DIR}/../env.sh" || exit 1
 
 echo "== Clean"