Update lftp from 4.9.1 to 4.9.2 (#4753)

Tested on x86_64.

packages/lftp.rb

@@ -3,26 +3,18 @@ require 'package'
 class Lftp < Package
   description 'LFTP is a sophisticated file transfer program for ftp/http/sftp/fish/torrent'
   homepage 'https://lftp.yar.ru'
-  version '4.9.1'
+  version '4.9.2'
   compatibility 'all'
-  source_url 'https://lftp.yar.ru/ftp/lftp-4.9.1.tar.xz'
-  source_sha256 '5969fcaefd102955dd882f3bcd8962198bc537224749ed92f206f415207a024b'
+  source_url 'https://lftp.yar.ru/ftp/lftp-4.9.2.tar.xz'
+  source_sha256 'c517c4f4f9c39bd415d7313088a2b1e313b2d386867fe40b7692b83a20f0670d'
 
   binary_url ({
-    aarch64: 'https://dl.bintray.com/chromebrew/chromebrew/lftp-4.9.1-chromeos-armv7l.tar.xz',
-     armv7l: 'https://dl.bintray.com/chromebrew/chromebrew/lftp-4.9.1-chromeos-armv7l.tar.xz',
-       i686: 'https://dl.bintray.com/chromebrew/chromebrew/lftp-4.9.1-chromeos-i686.tar.xz',
-     x86_64: 'https://dl.bintray.com/chromebrew/chromebrew/lftp-4.9.1-chromeos-x86_64.tar.xz',
   })
   binary_sha256 ({
-    aarch64: 'a803ec42009f43031b2d77d8ffe88933877d5d921fcb4bb093dd0e366ca3cfb1',
-     armv7l: 'a803ec42009f43031b2d77d8ffe88933877d5d921fcb4bb093dd0e366ca3cfb1',
-       i686: '2752fe7e4035e1847979379fcb1723a48bc9f06d6a37d3eda92c67fbe803ebdd',
-     x86_64: '6001988f90424bb072329bf8ff8f84410c17e65dbd06a90d43f27f323453b731',
   })
 
   def self.build
-    system "./configure #{CREW_OPTIONS} --disable-nls --with-linux-crypto"
+    system "./configure #{CREW_OPTIONS} --disable-nls --disable-dependency-tracking --with-linux-crypto"
     system 'make'
   end