suppress warning

Deprecated: strncmp(): Passing null to parameter #1 ($string1) of type string is deprecated

Author: aerogus

lib/cli/arguments/Argument.php

@@ -77,7 +77,7 @@ public function raw() {
 	 * @return bool
 	 */
 	public function isLong() {
-		return (0 == strncmp($this->_raw, '--', 2));
+		return (0 == strncmp((string)$this->_raw, '--', 2));
 	}
 
 	/**
@@ -86,7 +86,7 @@ public function isLong() {
 	 * @return bool
 	 */
 	public function isShort() {
-		return !$this->isLong && (0 == strncmp($this->_raw, '-', 1));
+		return !$this->isLong && (0 == strncmp((string)$this->_raw, '-', 1));
 	}
 
 	/**