switch default conc limit to infinity

src/arg.rs

@@ -36,15 +36,15 @@ OPTIONS:
  --recursive <number>	Set max directory recursion depth limit (1 = No recursion (default), 0 = Unlimited recursion).
  -r			Set unlimited directory recursion depth. (same as `--recursive 0`).
  --threads <number>	Limit the maximum number of tasks allowed to process concurrently (Set to 0 for unlimited.)
- -M			Set number of parallel running tasks to unlimited. (Same as `--threads 0`).
+ -M			Set number of parallel running tasks to unlimited. (Same as `--threads 0`). (default).
- -m			Limit number of parallel tasks to the number of active CPU processors. (default).
+ -m			Limit number of parallel tasks to the number of active CPU processors.
  -			Stop parsing arguments, treat all the rest as paths. 
 
  --help			Print this message and exit.
 
 NOTES:
  The first time a non-option argument is encountered, the program stops parsing arguments and assumes the rest of the arguments are paths.
- If parallelism is set to unlimited, there can be a huge syscall overhead. It is recommended to use `-m` (which is default anyway).
+ If parallelism is set to unlimited, there can be a huge syscall overhead. It is recommended to use `-m`.
 "#);
 }
 
@@ -94,9 +94,9 @@ fn parse<I: IntoIterator<Item=String>>(args: I) -> eyre::Result<Mode>
 						      .with_suggestion(suggestion_intended_arg.clone())
 						      .with_section(move || max.header("Parameter given was"))?);
 		},
-		"-M" => cfg.max_tasks = None,
+		"-M" => cfg.max_tasks = None, // this is the default, but it is possible an earlier command mutated it, so doing nothing here would be a bug for that corner case
 		"-m" => {
-		    cfg.max_tasks = config::max_tasks_cpus(); // this is the default, but it is possible an earlier command mutated it, so doing nothing here would be a bug for that corner case
+		    cfg.max_tasks = config::max_tasks_cpus();
 		},
 
 		"--recursive" => {

src/config.rs

@@ -72,7 +72,7 @@ impl Default for Config
 	Self {
 	    paths: Vec::new(),
 	    recursive: Default::default(),
-	    max_tasks: max_tasks_cpus(),
+	    max_tasks: None, //max_tasks_cpus(),
 	}
     }
 }
@@ -118,7 +118,7 @@ impl fmt::Display for InvalidConfigError
 	match self {
 	    Self::NoPaths => write!(f, "No input paths were given. Cannot do anything"),
 	    Self::PathNotFound(path) => write!(f, "Root path {:?} not found", path),
-	    #[cold] _ => write!(f, "Unknown error"),
+	    _ => write!(f, "Unknown error"),
 	}
     }
 }