APItest/t/utf8_setup.pl: Make sure diagnostics are on separate lines

This changes diagnostic output to guarantee each element of the array
starts on a new line, for easier readability.  The array may or may not
already have terminating \n characters in the elements.

diff --git a/ext/XS-APItest/t/utf8_setup.pl b/ext/XS-APItest/t/utf8_setup.pl
index 2f676a3..dd3992d 100644 (file)
--- a/ext/XS-APItest/t/utf8_setup.pl
+++ b/ext/XS-APItest/t/utf8_setup.pl
@@ -19,7 +19,13 @@ sub display_bytes {
 }
 
 sub output_warnings(@) {
-    diag "The warnings were:\n" . join("", @_);
+    my @list = @_;
+    if (@list) {
+        diag "The warnings were:\n" . join "\n", map { chomp; $_ } @list;
+    }
+    else {
+        diag "No warnings were raised";
+    }
 }
 
 sub start_byte_to_cont($) {