[PATCH 2/2] hval: from_attr: move to unit test

[Eric Wong <e@yhbt.net>]

We don't call from_attr anywhere outside of tests, so don't
bloat normal processes with it.
---
 lib/PublicInbox/Hval.pm | 15 +--------------
 t/hval.t                | 15 ++++++++++++++-
 2 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/lib/PublicInbox/Hval.pm b/lib/PublicInbox/Hval.pm
index 39256ee0..2589c519 100644
--- a/lib/PublicInbox/Hval.pm
+++ b/lib/PublicInbox/Hval.pm
@@ -10,7 +10,7 @@ use Encode qw(find_encoding);
 use PublicInbox::MID qw/mid_clean mid_escape/;
 use base qw/Exporter/;
 our @EXPORT_OK = qw/ascii_html obfuscate_addrs to_filename src_escape
-		to_attr from_attr prurl/;
+		to_attr prurl/;
 my $enc_ascii = find_encoding('us-ascii');
 
 # safe-ish acceptable filename pattern for portability
@@ -148,17 +148,4 @@ sub to_attr ($) {
 	$first . $str;
 }
 
-# reverse the result of to_attr
-sub from_attr ($) {
-	my ($str) = @_;
-	my $first = '';
-	if ($str =~ s/\AZ([a-f0-9]{2})//ms) {
-		$first = chr(hex($1));
-	}
-	$str =~ s!::([a-f0-9]{2})!chr(hex($1))!egms;
-	$str =~ tr!:!/!;
-	utf8::decode($str);
-	$first . $str;
-}
-
 1;
diff --git a/t/hval.t b/t/hval.t
index f93d6be6..53f52f07 100644
--- a/t/hval.t
+++ b/t/hval.t
@@ -3,7 +3,20 @@
 use strict;
 use warnings;
 use Test::More;
-use_ok 'PublicInbox::Hval', qw(from_attr to_attr);
+use_ok 'PublicInbox::Hval', qw(to_attr);
+
+# reverse the result of to_attr
+sub from_attr ($) {
+	my ($str) = @_;
+	my $first = '';
+	if ($str =~ s/\AZ([a-f0-9]{2})//ms) {
+		$first = chr(hex($1));
+	}
+	$str =~ s!::([a-f0-9]{2})!chr(hex($1))!egms;
+	$str =~ tr!:!/!;
+	utf8::decode($str);
+	$first . $str;
+}
 
 my $ibx = {
 	-no_obfuscate_re => qr/(?:example\.com)\z/i,