tests/int/*bats: ignore SC2016

Ignore the shellcheck warnings like this one:

> In tty.bats line 32:
> 	update_config '(.. | select(.[]? == "sh")) += ["-c", "stat -c %u:%g $(tty) | tr : \\\\n"]'
>                     ^-- SC2016: Expressions don't expand in single quotes, use double quotes for that.

While at it, fix some minor whitespace issues in tty.bats.

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

tests/integration/cgroups.bats

@@ -170,6 +170,7 @@ function setup() {
     [[ ${lines[0]} == "0::/foo" ]]
 
 # teardown: remove "/foo"
+    # shellcheck disable=SC2016
     runc exec test_cgroups_group sh -uxc 'echo -memory > /sys/fs/cgroup/cgroup.subtree_control; for f in $(cat /sys/fs/cgroup/foo/cgroup.procs); do echo $f > /sys/fs/cgroup/cgroup.procs; done; rmdir /sys/fs/cgroup/foo'
     runc exec test_cgroups_group test ! -d /sys/fs/cgroup/foo
     [ "$status" -eq 0 ]

tests/integration/checkpoint.bats

@@ -27,6 +27,7 @@ function teardown() {
 
 function setup_pipes() {
 	# The changes to 'terminal' are needed for running in detached mode
+	# shellcheck disable=SC2016
 	update_config 	' (.. | select(.terminal? != null)) .terminal |= false
 			| (.. | select(.[]? == "sh")) += ["-c", "for i in `seq 10`; do read xxx || continue; echo ponG $xxx; done"]'
 

tests/integration/events.bats

@@ -131,6 +131,7 @@ function teardown() {
   (__runc events test_busybox > events.log) &
   (
     retry 10 1 eval "grep -q 'test_busybox' events.log"
+    # shellcheck disable=SC2016
     __runc exec -d test_busybox sh -c 'test=$(dd if=/dev/urandom ibs=5120k)'
     retry 10 1 eval "grep -q 'oom' events.log"
     __runc delete -f test_busybox

tests/integration/tty.bats

@@ -13,6 +13,7 @@ function teardown() {
 
 @test "runc run [tty ptsname]" {
 	# Replace sh script with readlink.
+	# shellcheck disable=SC2016
 	update_config '(.. | select(.[]? == "sh")) += ["-c", "for file in /proc/self/fd/[012]; do readlink $file; done"]'
 
 	# run busybox
@@ -29,6 +30,7 @@ function teardown() {
 	[[ "$ROOTLESS" -ne 0 ]] && requires rootless_idmap
 
 	# Replace sh script with stat.
+	# shellcheck disable=SC2016
 	update_config '(.. | select(.[]? == "sh")) += ["-c", "stat -c %u:%g $(tty) | tr : \\\\n"]'
 
 	# run busybox
@@ -46,6 +48,7 @@ function teardown() {
 	# replace "uid": 0 with "uid": 1000
 	# and do a similar thing for gid.
 	# Replace sh script with stat.
+	# shellcheck disable=SC2016
 	update_config 	' (.. | select(.uid? == 0)) .uid |= 1000
 			| (.. | select(.gid? == 0)) .gid |= 100
 			| (.. | select(.[]? == "sh")) += ["-c", "stat -c %u:%g $(tty) | tr : \\\\n"]'
@@ -67,7 +70,8 @@ function teardown() {
 	testcontainer test_busybox running
 
 	# run the exec
-    runc exec -t test_busybox sh -c 'for file in /proc/self/fd/[012]; do readlink $file; done'
+	# shellcheck disable=SC2016
+	runc exec -t test_busybox sh -c 'for file in /proc/self/fd/[012]; do readlink $file; done'
 	[ "$status" -eq 0 ]
 	[[ ${lines[0]} =~ /dev/pts/+ ]]
 	[[ ${lines[1]} =~ /dev/pts/+ ]]
@@ -87,7 +91,8 @@ function teardown() {
 	testcontainer test_busybox running
 
 	# run the exec
-    runc exec -t test_busybox sh -c 'stat -c %u:%g $(tty) | tr : \\n'
+	# shellcheck disable=SC2016
+	runc exec -t test_busybox sh -c 'stat -c %u:%g $(tty) | tr : \\n'
 	[ "$status" -eq 0 ]
 	[[ ${lines[0]} =~ 0 ]]
 	[[ ${lines[1]} =~ 5 ]]
@@ -99,8 +104,9 @@ function teardown() {
 
 	# replace "uid": 0 with "uid": 1000
 	# and do a similar thing for gid.
+	# shellcheck disable=SC2016
 	update_config 	' (.. | select(.uid? == 0)) .uid |= 1000
-  			| (.. | select(.gid? == 0)) .gid |= 100' 
+			| (.. | select(.gid? == 0)) .gid |= 100'
 
 	# run busybox detached
 	runc run -d --console-socket "$CONSOLE_SOCKET" test_busybox
@@ -110,6 +116,7 @@ function teardown() {
 	testcontainer test_busybox running
 
 	# run the exec
+	# shellcheck disable=SC2016
 	runc exec -t test_busybox sh -c 'stat -c %u:%g $(tty) | tr : \\n'
 	[ "$status" -eq 0 ]
 	[[ ${lines[0]} =~ 1000 ]]