Rollup merge of rust-lang#144836 - chotchki:patch-1, r=tgross35

Change visibility of Args new function

Currently the Args new function is constrained to pub(super) but this stops me from being able to construct Args structs in unit tests.

This pull request is to change this to pub.

Author: samueltardieu

library/std/src/sys/args/common.rs

@@ -12,7 +12,7 @@ impl !Sync for Args {}
 
 impl Args {
     #[inline]
-    pub(super) fn new(args: Vec<OsString>) -> Self {
+    pub fn new(args: Vec<OsString>) -> Self {
         Args { iter: args.into_iter() }
     }
 }