Check for existence of correct variable.

+ Use bash double brackets

1 files changed, 2 insertions, 2 deletions

diff --git a/bootstrap.sh b/bootstrap.sh
index 2353154da8d..c8f300408db 100755
--- a/bootstrap.sh
+++ b/bootstrap.sh
@@ -29,9 +29,9 @@ get_env_var_with_optional_default() {
    local var_name=$1
    local default_val=$2
    eval "existing_value=\${$var_name}"
-    if [ -n "$existing_value" ]; then
+    if [[ -n $existing_value ]]; then
         echo "$existing_value"
-    elif [ $# -ge 2 ]; then
+    elif [[ -n $default_val ]]; then
         echo "$default_val"
     fi
 }