run-in-py-utils-bt2-env.sh: use the arg. count io. checking a string

More readable.

Signed-off-by: Philippe Proulx <eeppeliteloop@gmail.com>
Change-Id: Ib8f616f815c1d7d6ed44a6b6c412e419225aa8dd

diff --git a/tests/utils/run-in-py-env.sh b/tests/utils/run-in-py-env.sh
index bca648ec89868a0507de81fc0cf092ae1a70bf71..10b590e25bfd907b2abb81b256df9a291319ceb5 100755 (executable)
--- a/tests/utils/run-in-py-env.sh
+++ b/tests/utils/run-in-py-env.sh
@@ -25,7 +25,7 @@ usage() {
        echo "environment variable to the built \`tests\` directory."
 }
 
-if [[ -z "$*" ]]; then
+if (($# == 0)); then
        usage
        exit 1
 fi