fix merge

Author: felipensp

vlib/net/util.v

@@ -21,20 +21,24 @@ pub fn split_address(addr string) !(string, u16) {
 		port := addr.all_after_last(']:').int()
 		p := validate_port(port)!
 		return address, p
-	} else if _ := addr.index(':') {
-		// ipv6 ::1
-		if addr.all_before_last(':').trim(':') == '' {
+	} else if _ := addr.index('::') {
+		// ipv6 host only ::1
+		if addr.all_before_last('::') == '' {
 			return addr, 0
 		} else {
-			// ip:port
+			// addr:port
 			address := addr.all_before_last(':')
 			port := addr.all_after_last(':').int()
 			p := validate_port(port)!
 			return address, p
 		}
+	} else if _ := addr.index(':') {
+		// addr:port
+		address := addr.all_before_last(':')
+		p := validate_port(addr.all_after_last(':').int())!
+		return address, p
 	} else {
 		// addr only
-		address := addr.all_before_last(':')
-		return address, 0
+		return addr, 0
 	}
 }