[PATCH] git_async_cat: inline + drop redundant batch_prepare call

[Eric Wong <e@80x24.org>]

$git->cat_async already calls $git->batch_prepare iff needed, so
we can reduce subroutine calls and inline a one-off subroutine
to save some memory, here.
---
 lib/PublicInbox/GitAsyncCat.pm | 14 +++++---------
 1 file changed, 5 insertions(+), 9 deletions(-)

diff --git a/lib/PublicInbox/GitAsyncCat.pm b/lib/PublicInbox/GitAsyncCat.pm
index 5f785df7..db1a7f94 100644
--- a/lib/PublicInbox/GitAsyncCat.pm
+++ b/lib/PublicInbox/GitAsyncCat.pm
@@ -14,14 +14,6 @@ use parent qw(PublicInbox::DS Exporter);
 use PublicInbox::Syscall qw(EPOLLIN EPOLLET);
 our @EXPORT = qw(git_async_cat);
 
-sub _add {
-	my ($class, $git) = @_;
-	$git->batch_prepare;
-	my $self = bless { git => $git }, $class;
-	$self->SUPER::new($git->{in}, EPOLLIN|EPOLLET);
-	\undef; # this is a true ref()
-}
-
 sub event_step {
 	my ($self) = @_;
 	my $git = $self->{git};
@@ -36,7 +28,11 @@ sub event_step {
 sub git_async_cat ($$$$) {
 	my ($git, $oid, $cb, $arg) = @_;
 	$git->cat_async($oid, $cb, $arg);
-	$git->{async_cat} //= _add(__PACKAGE__, $git);
+	$git->{async_cat} //= do {
+		my $self = bless { git => $git }, __PACKAGE__;
+		$self->SUPER::new($git->{in}, EPOLLIN|EPOLLET);
+		\undef; # this is a true ref()
+	};
 }
 
 1;