test: rename tenv-root -> sysroot

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

test/tenv/enter.sh

@@ -11,8 +11,8 @@ else
 fi
 
 TEST_DIR=$(dirname "$0")/..
-TENV_ROOT="${TENV_ROOT:-$(pwd)/${TEST_DIR}/tenv-root}"
-PID_FILE="$TENV_ROOT/running_test.pid"
+SYSROOT="${SYSROOT:-$(pwd)/${TEST_DIR}/sysroot}"
+PID_FILE="$SYSROOT/running_test.pid"
 
 if [ -f  "$PID_FILE" ] ; then
 	target=$(cat "$PID_FILE")
@@ -22,6 +22,7 @@ else
 	exit 1
 fi
 
-source "$TEST_DIR/test.env"
+# shellcheck disable=SC1091
+. "$TEST_DIR/test.env"
 
 "$(dirname "$0")"/exec.sh "$target" "$cmd" "$@"