UI for setting real name for from address

https://github.com/webmin/webmin/issues/2600

webmin/edit_sendmail.cgi

@@ -64,7 +64,9 @@ $fromdef = "webmin-noreply\@".&mailboxes::get_from_domain();
 print &ui_table_row($text{'sendmail_from'},
 	&ui_opt_textbox("from", $from, 40,
 			&text('sendmail_fromdef', $fromdef)."<br>",
-			$text{'sendmail_fromaddr'}));
+			$text{'sendmail_fromaddr'})." ".
+	$text{'sendmail_name'}." ".
+	&ui_textbox("from_name", $mconfig{'webmin_from_name'}, 30), 3);
 
 # Default to address for notifications
 $to = $gconfig{'webmin_email_to'};

webmin/lang/en

@@ -1105,6 +1105,7 @@ sendmail_authdef=Default (currently Cram-MD5)
 sendmail_from=From address for email from Webmin
 sendmail_fromdef=Default ($1)
 sendmail_fromaddr=Address
+sendmail_name=Display name
 sendmail_toaddr=Default destination address for notifications
 sendmail_to_def=None set
 sendmail_etoaddr=Missing or incorrectly formatted destination address

webmin/save_sendmail.cgi

@@ -63,6 +63,7 @@ else {
 	$in{'from'} =~ /^\S+$/ || &error($text{'sendmail_efrom'});
 	$mconfig{'webmin_from'} = $in{'from'};
 	}
+$mconfig{'webmin_from_name'} = $in{'from_name'};
 
 # Save to address
 if ($in{'to_def'}) {