tests/int: simplify assignments

Assigning a multi-line value to a bash variable should not be so complex.

While at it, slightly reformat create_runtime_hook.

No functional change.

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

tests/integration/hooks_so.bats

@@ -30,13 +30,8 @@ function teardown() {
 	bundle=$(pwd)
 
 	# To mount $HOOKLIBCR we need to do that in the container namespace
-	create_runtime_hook=$(
-		cat <<-EOF
-			pid=\$(cat - | jq -r '.pid')
-			touch "$LIBPATH/$HOOKLIBCR.1.0.0"
-			nsenter -m \$ns -t \$pid mount --bind "$bundle/$HOOKLIBCR.1.0.0" "$LIBPATH/$HOOKLIBCR.1.0.0"
-		EOF
-	)
+	create_runtime_hook="pid=\$(cat - | jq -r '.pid'); touch "$LIBPATH/$HOOKLIBCR.1.0.0" && \
+		nsenter -m \$ns -t \$pid mount --bind "$bundle/$HOOKLIBCR.1.0.0" "$LIBPATH/$HOOKLIBCR.1.0.0""
 
 	create_container_hook="touch ./lib/$HOOKLIBCC.1.0.0 && mount --bind $bundle/$HOOKLIBCC.1.0.0 ./lib/$HOOKLIBCC.1.0.0"
 

tests/integration/tty.bats

@@ -153,8 +153,7 @@ function teardown() {
 	# make sure we're running
 	testcontainer test_busybox running
 
-	tty_info_with_consize_size=$(
-		cat <<EOF
+	tty_info_with_consize_size='
 {
     "terminal": true,
     "consoleSize": {
@@ -167,9 +166,7 @@ function teardown() {
 	    "/bin/stty -a > /tmp/tty-info"
     ],
     "cwd": "/"
-}
-EOF
-	)
+}'
 
 	# Run the detached exec.
 	runc exec -t --pid-file pid.txt -d --console-socket "$CONSOLE_SOCKET" -p <(echo "$tty_info_with_consize_size") test_busybox
@@ -179,17 +176,14 @@ EOF
 	# Wait for the exec to finish.
 	wait_pids_gone 100 0.5 "$(cat pid.txt)"
 
-	tty_info=$(
-		cat <<EOF
+	tty_info='
 {
     "args": [
 	"/bin/cat",
 	"/tmp/tty-info"
     ],
     "cwd": "/"
-}
-EOF
-	)
+}'
 
 	# run the exec
 	runc exec -t -p <(echo "$tty_info") test_busybox