shuf: accept multiple occurances of head-count argument

[ghost]

Closes #3328

[ghost]

I am not sure why the cargo fmt is failing in CICD. I don't see any issues locally. Any suggestions?

Run ## `cargo fmt` testing of integration tests
Diff in /home/runner/work/coreutils/coreutils/tests/by-util/test_shuf.rs at line 202:
     let result = new_ucmd!()
         .args(&["-i10-200", "-n", "10", "-n", "5"])
         .succeeds();
-    result.no_stderr();    
+    result.no_stderr();
     let result_seq: Vec<&str> = result
         .stdout_str()
         .split('\n')
Error: ERROR: `cargo fmt`: style violation (file:'tests/by-util/test_shuf.rs', line:202; use `cargo fmt "tests/by-util/test_shuf.rs"`)
Error: Process completed with exit code 1.

[sylvestre]

tab vs space?

[ghost]

tab vs space?

No. All spaces locally. I am running cargo fmt locally and not getting any changes. I'll merge the last line per suggestion and see what happens.

[sylvestre]

Is that expected?

Error: GNU test failed: tests/misc/shuf. tests/misc/shuf is passing on 'main'. Maybe you have to rebase?

[ghost]

Is that expected?

Error: GNU test failed: tests/misc/shuf. tests/misc/shuf is passing on 'main'. Maybe you have to rebase?

Nope. Let me check.

[ghost]

Is that expected?

Error: GNU test failed: tests/misc/shuf. tests/misc/shuf is passing on 'main'. Maybe you have to rebase?

We can see from the issue #3320 that tests/misc/shuf is marked as ERROR (in main). I am assuming the changes in this PR is marking the test as FAILED and hence the message in CICD.

We could see from below that the FAIL count is increased with the decrease of ERROR count. The message above is misleading. The test was not passing on main rather it was in error.

Reference SHA1/ID: 6910b655322894ad898c8aad42302a12aa182012  reference/test-summary/gnu-result.json
Warning: Changes from main: PASS +0 / FAIL +1 / ERROR -1 / SKIP +0 

[ghost]

Latest test result

Reference SHA1/ID: 6910b655322894ad898c8aad42302a12aa182012  reference/test-summary/gnu-result.json
Error: GNU test failed: tests/factor/t06. tests/factor/t06 is passing on 'main'. Maybe you have to rebase?
Error: GNU test failed: tests/factor/t11. tests/factor/t11 is passing on 'main'. Maybe you have to rebase?
Error: GNU test failed: tests/misc/shuf. tests/misc/shuf is passing on 'main'. Maybe you have to rebase?
Error: Process completed with exit code 255.

I already explained the reason for shuf in the earlier comment. I have no idea why t06 and t11 are failing. My change has nothing to do with those two tests.

[sylvestre]

We can see from the issue #3320 that tests/misc/shuf is marked as ERROR (in main). I am assuming the changes in this PR is marking the test as FAILED and hence the message in CICD.

Oh, yeah, right. it is mentioned here:
#3320

well done :)