.as_ref() and fmt

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

utils/frame/benchmarking-cli/src/overhead/template.rs

@@ -72,7 +72,12 @@ impl TemplateData {
 		stats: &Stats,
 	) -> Result<Self> {
 		let weight = params.weight.calc_weight(stats)?;
-		let header = params.header.map(|p| std::fs::read_to_string(p)).transpose()?.unwrap_or_default();
+		let header = params
+			.header
+			.as_ref()
+			.map(|p| std::fs::read_to_string(p))
+			.transpose()?
+			.unwrap_or_default();
 
 		Ok(TemplateData {
 			short_name: t.short_name().into(),

utils/frame/benchmarking-cli/src/storage/template.rs

@@ -66,7 +66,12 @@ pub(crate) struct TemplateData {
 impl TemplateData {
 	/// Returns a new [`Self`] from the given configuration.
 	pub fn new(cfg: &Configuration, params: &StorageParams) -> Result<Self> {
-		let header = params.header.map(|p| std::fs::read_to_string(p)).transpose()?.unwrap_or_default();
+		let header = params
+			.header
+			.as_ref()
+			.map(|p| std::fs::read_to_string(p))
+			.transpose()?
+			.unwrap_or_default();
 
 		Ok(TemplateData {
 			db_name: format!("{}", cfg.database),