sort: use SmallRng instead of Pcg32 in test

Author: cakebaker

tests/by-util/test_sort.rs

@@ -1263,6 +1263,7 @@ fn test_tmp_files_deleted_on_sigint() {
     use std::{fs::read_dir, time::Duration};
 
     use nix::{sys::signal, unistd::Pid};
+    use rand::rngs::SmallRng;
 
     let (at, mut ucmd) = at_and_ucmd!();
     at.mkdir("tmp_dir");
@@ -1273,7 +1274,7 @@ fn test_tmp_files_deleted_on_sigint() {
         let mut file = at.make_file(file_name);
         // approximately 20 MB
         for _ in 0..40 {
-            let lines = rand_pcg::Pcg32::seed_from_u64(123)
+            let lines = SmallRng::seed_from_u64(123)
                 .sample_iter(rand::distributions::uniform::Uniform::new(0, 10000))
                 .take(100_000)
                 .map(|x| x.to_string() + "\n")