lintcheck: use all threads when using default parallel mode

It makes little sense to restrict ourselves to physical threads,
especially when, in modern architectures, cores with multiple threads
are often faster (performance) while cores with a unique threads are
often slower (efficient).

Author: samueltardieu

lintcheck/src/config.rs

@@ -49,10 +49,10 @@ impl LintcheckConfig {
             if config.markdown { "md" } else { "txt" }
         ));
 
-        // look at the --threads arg, if 0 is passed, use the physical core count
+        // look at the --threads arg, if 0 is passed, use the threads count
         if config.max_jobs == 0 {
             // automatic choice
-            config.max_jobs = num_cpus::get_physical();
+            config.max_jobs = num_cpus::get();
         };
 
         for lint_name in &mut config.lint_filter {