[PATCH 1/3] qspawn: import Scalar::Util::blessed properly

[Eric Wong]

Scalar::Util may not be loaded by other modules in the future.
---
 lib/PublicInbox/Qspawn.pm | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/lib/PublicInbox/Qspawn.pm b/lib/PublicInbox/Qspawn.pm
index c2d8fd73..0044c1f6 100644
--- a/lib/PublicInbox/Qspawn.pm
+++ b/lib/PublicInbox/Qspawn.pm
@@ -28,6 +28,7 @@ package PublicInbox::Qspawn;
 use v5.12;
 use PublicInbox::Spawn qw(popen_rd);
 use PublicInbox::GzipFilter;
+use Scalar::Util qw(blessed);
 
 # n.b.: we get EAGAIN with public-inbox-httpd, and EINTR on other PSGI servers
 use Errno qw(EAGAIN EINTR);
@@ -234,8 +235,9 @@ sub psgi_return_init_cb { # this may be 
PublicInbox::HTTPD::Async {cb}
        my $r = rd_hdr($self) or return;
        my $env = $self->{psgi_env};
        my $filter;
-       if (ref($r) eq 'ARRAY' && Scalar::Util::blessed($r->[2]) &&
-                       $r->[2]->can('attach')) {
+
+       # this is for RepoAtom since that can fire after parse_cgi_headers
+       if (ref($r) eq 'ARRAY' && blessed($r->[2]) && $r->[2]->can('attach')) {
                $filter = pop @$r;
        }
        $filter //= delete($env->{'qspawn.filter'}) // (ref($r) eq 'ARRAY' ?