bugfix: handle empty string

1 files changed, 1 insertions, 1 deletions

diff --git a/it.class b/it.class
index e0e85a9..ea55a69 100644
--- a/it.class
+++ b/it.class
@@ -524,7 +524,7 @@ static function _exec_quotevalue($value, $errmsg = "")
 	if (it::match('^-', $result))
 		it::fatal("leading - in value: " . $errmsg);
 
-	return it::match('[^-a-z0-9./_:,]', $result) ? escapeshellarg($result) : $result;
+	return it::match('^[-a-z0-9./_:,]+$', $result) ? $result : escapeshellarg($result);
 }