Add CLI argument to disable log color output (#7795)

substrate/client/cli/src/params/shared_params.rs

@@ -46,6 +46,10 @@ pub struct SharedParams {
 	#[structopt(short = "l", long, value_name = "LOG_PATTERN")]
 	pub log: Vec<String>,
 
+	/// Disable log color output.
+	#[structopt(long)]
+	pub disable_log_color: bool,
+
 	/// Disable feature to dynamically update and reload the log filter.
 	///
 	/// By default this feature is enabled, however it leads to a small performance decrease.
@@ -99,6 +103,11 @@ impl SharedParams {
 		&self.log
 	}
 
+	/// Should the log color output be disabled?
+	pub fn disable_log_color(&self) -> bool {
+		self.disable_log_color
+	}
+
 	/// Is log reloading disabled
 	pub fn is_log_filter_reloading_disabled(&self) -> bool {
 		self.disable_log_reloading