final switch => match

vlib/encoding/csv/writer.v

@@ -51,12 +51,14 @@ pub fn (w mut Writer) write(record []string) ?bool {
 
 			if field.len > 0 {
 				z := field[0]
-				switch z {
-				case `"`:
+				match z {
+				`"` {
 					w.sb.write('""')
-				case `\r` || `\n`:
+				}
+				`\r`, `\n` {
 					w.sb.write(le)
 				}
+				}
 				field = field[1..]
 			}
 		}