treewide: use warn() or carp() instead of env->{psgi.errors}

Large chunks of our codebase and 3rd-party dependencies do not
use ->{psgi.errors}, so trying to standardize on it was a
fruitless endeavor.  Since warn() and carp() are standard
mechanism within Perl, just use that instead and simplify a
bunch of existing code.

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/PublicInbox/WwwHighlight.pm b/lib/PublicInbox/WwwHighlight.pm
index 3593c2d4..75338806 100644
--- a/lib/PublicInbox/WwwHighlight.pm
+++ b/lib/PublicInbox/WwwHighlight.pm
@@ -46,7 +46,7 @@ sub read_in_full ($) {
                 return \$buf if $r == 0;
                 $off += $r;
         }
-        $env->{'psgi.errors'}->print("input read error: $!\n");
+        warn "input read error: $!";
         undef;
 }