unix_sigpipe: Simple fixes and improvements in tests

tests/ui/attributes/unix_sigpipe/unix_sigpipe.stderr → tests/ui/attributes/unix_sigpipe/unix_sigpipe-bare.stderr

@@ -1,5 +1,5 @@
 error: valid values for `#[unix_sigpipe = "..."]` are `inherit`, `sig_ign`, or `sig_dfl`
-  --> $DIR/unix_sigpipe.rs:3:1
+  --> $DIR/unix_sigpipe-bare.rs:3:1
    |
 LL | #[unix_sigpipe]
    | ^^^^^^^^^^^^^^^

tests/ui/attributes/unix_sigpipe/unix_sigpipe-different-duplicates.rs

@@ -0,0 +1,5 @@
+#![feature(unix_sigpipe)]
+
+#[unix_sigpipe = "sig_ign"]
+#[unix_sigpipe = "inherit"] //~ error: multiple `unix_sigpipe` attributes
+fn main() {}

tests/ui/attributes/unix_sigpipe/unix_sigpipe-different-duplicates.stderr

@@ -0,0 +1,14 @@
+error: multiple `unix_sigpipe` attributes
+  --> $DIR/unix_sigpipe-different-duplicates.rs:4:1
+   |
+LL | #[unix_sigpipe = "inherit"]
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute
+   |
+note: attribute also specified here
+  --> $DIR/unix_sigpipe-different-duplicates.rs:3:1
+   |
+LL | #[unix_sigpipe = "sig_ign"]
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+error: aborting due to 1 previous error
+

tests/ui/attributes/unix_sigpipe/unix_sigpipe-duplicates.rs

@@ -1,5 +1,5 @@
 #![feature(unix_sigpipe)]
 
-#[unix_sigpipe = "sig_ign"]
+#[unix_sigpipe = "inherit"]
 #[unix_sigpipe = "inherit"] //~ error: multiple `unix_sigpipe` attributes
 fn main() {}

tests/ui/attributes/unix_sigpipe/unix_sigpipe-duplicates.stderr

@@ -7,7 +7,7 @@ LL | #[unix_sigpipe = "inherit"]
 note: attribute also specified here
   --> $DIR/unix_sigpipe-duplicates.rs:3:1
    |
-LL | #[unix_sigpipe = "sig_ign"]
+LL | #[unix_sigpipe = "inherit"]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: aborting due to 1 previous error

tests/ui/attributes/unix_sigpipe/unix_sigpipe-not-used.rs

@@ -1,6 +1,9 @@
+//@ revisions: with_feature without_feature
 //@ run-pass
 //@ aux-build:sigpipe-utils.rs
 
+#![cfg_attr(with_feature, feature(unix_sigpipe))]
+
 fn main() {
     extern crate sigpipe_utils;