send-email: honor transferencoding config option again

Since e67a228 ("send-email: automatically determine
transfer-encoding"), the value of sendmail.transferencoding in the
configuration file is ignored, because $target_xfer_encoding is
already defined read_config sub parses the configuration file.

Instead of initializing variable $target_xfer_encoding to 'auto' on
definition, we have to set it to the default value of 'auto' if is
undefined after parsing the configuration files.

Signed-off-by: Heinrich Schuchardt <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: xypron

git-send-email.perl

@@ -231,7 +231,7 @@ sub do_edit {
 my (@suppress_cc);
 my ($auto_8bit_encoding);
 my ($compose_encoding);
-my $target_xfer_encoding = 'auto';
+my ($target_xfer_encoding);
 
 my ($debug_net_smtp) = 0;		# Net::SMTP, see send_message()
 
@@ -434,6 +434,8 @@ sub read_config {
 			$smtp_encryption = 'ssl';
 		}
 	}
+
+	$target_xfer_encoding = 'auto' unless (defined $target_xfer_encoding);
 }
 
 # read configuration from [sendemail "$identity"], fall back on [sendemail]