cleanup: reduce ops

Author: joshstoik1

fyi_msg/src/msg/mod.rs

@@ -690,12 +690,9 @@ impl Msg {
 	pub fn set_timestamp(&mut self, enabled: bool) {
 		if enabled {
 			let now = utc2k::FmtUtc2k::now_local();
-			let now_s = now.as_str();
-			let mut out = String::with_capacity(24 + now_s.len());
-			out.push_str(csi!(dim));
-			out.push('[');
-			out.push_str(csi!(reset, blue));
-			out.push_str(now_s);
+			let mut out = String::with_capacity(43);
+			out.push_str(concat!(csi!(dim), "[", csi!(reset, blue)));
+			out.push_str(now.as_str());
 			out.push_str(concat!(ansi!((reset, dim) "]"), " "));
 			self.replace_part(TocId::Timestamp, &out);
 		}