better --board detect for (non 'cargo-') espflash

Author: icewind1991

espflash/src/main.rs

@@ -49,8 +49,8 @@ fn main() -> Result<()> {
     let mut flasher = Flasher::connect(serial, None)?;
 
     if board_info {
-        println!("Chip type: {:?}", flasher.chip());
-        println!("Flash size: {:?}", flasher.flash_size());
+        println!("Chip type: {}", flasher.chip());
+        println!("Flash size: {}", flasher.flash_size());
 
         return Ok(());
     }