Add toString() to IpAddressMatcher.java

Closes gh-16795

Signed-off-by: wtigerhyunsu <jack951@naver.com>

Author: wtigerhyunsu

web/src/main/java/org/springframework/security/web/util/matcher/IpAddressMatcher.java

@@ -133,8 +133,8 @@ private InetAddress parseAddress(String address) {
 	@Override
 	public String toString() {
 		String hostAddress = this.requiredAddress.getHostAddress();
-		return (this.nMaskBits < 0) ? "IpAddressMatcher[" + hostAddress + "]"
-				: "IpAddressMatcher[" + hostAddress + "/" + this.nMaskBits + "]";
+		return (this.nMaskBits < 0) ? "IpAddress [" + hostAddress + "]"
+				: "IpAddress [" + hostAddress + "/" + this.nMaskBits + "]";
 	}
 
 }