rename {pi_config} fields to {pi_cfg}

{pi_config} may be confused with the documented `PI_CONFIG'
environment variable, and we'll favor vowel-removal to be
consistent with our usage of object references.

The `pi_' prefix may stay in some places, for now; since a
separate namespace may come into this codebase for local/private
client-tooling.

For InboxIdle, we'll also remove an invalid comment about
holding a reference to the PublicInbox::Config object, too.

1 files changed, 2 insertions, 2 deletions

diff --git a/lib/PublicInbox/Spamcheck.pm b/lib/PublicInbox/Spamcheck.pm
index ffebb3cf..218fcc01 100644
--- a/lib/PublicInbox/Spamcheck.pm
+++ b/lib/PublicInbox/Spamcheck.pm
@@ -7,8 +7,8 @@ use strict;
 use warnings;
 
 sub get {
-        my ($config, $key, $default) = @_;
-        my $spamcheck = $config->{$key};
+        my ($cfg, $key, $default) = @_;
+        my $spamcheck = $cfg->{$key};
         $spamcheck = $default unless $spamcheck;
 
         return if !$spamcheck || $spamcheck eq 'none';