dmesg: remove underscore from used fields.

src/uu/dmesg/src/dmesg.rs

@@ -113,10 +113,10 @@ enum OutputFormat {
 }
 
 struct Record {
-    _priority_facility: u32,
+    priority_facility: u32,
     _sequence: u64,
-    _timestamp_us: u64,
-    _message: String,
+    timestamp_us: u64,
+    message: String,
 }
 
 impl Record {
@@ -126,10 +126,10 @@ impl Record {
         let time = str::parse(time);
         match (pri_fac, seq, time) {
             (Ok(pri_fac), Ok(seq), Ok(time)) => Record {
-                _priority_facility: pri_fac,
+                priority_facility: pri_fac,
                 _sequence: seq,
-                _timestamp_us: time,
-                _message: msg,
+                timestamp_us: time,
+                message: msg,
             },
             _ => panic!("parse error."),
         }

src/uu/dmesg/src/json.rs

@@ -27,9 +27,9 @@ impl<'a> From<&'a Vec<crate::Record>> for Dmesg<'a> {
         let mut dmesg_json = Dmesg { dmesg: vec![] };
         for record in value {
             let record_json = Record {
-                pri: record._priority_facility,
-                time: record._timestamp_us,
-                msg: &record._message,
+                pri: record.priority_facility,
+                time: record.timestamp_us,
+                msg: &record.message,
             };
             dmesg_json.dmesg.push(record_json);
         }