Update curl from 7.55.1 to 7.56.0

This is a bugfix and maintenance release.

In addition to updating the package I've also:

- added an explicit --prefix
- disabled debug and other options useful for curl devs specifically
- reordered package dependencies to be alphabetical

packages/curl.rb

@@ -3,38 +3,35 @@ require 'package'
 class Curl < Package
   description 'Command line tool and library for transferring data with URLs.'
   homepage 'https://curl.haxx.se/'
-  version '7.55.1'
-  source_url 'https://curl.haxx.se/download/curl-7.55.1.tar.bz2'
-  source_sha256 'e5b1a92ed3b0c11f149886458fa063419500819f1610c020d62f25b8e4b16cfb'
+  version '7.56.0'
+  source_url 'https://curl.haxx.se/download/curl-7.56.0.tar.xz'
+  source_sha256 '32437bcca0e9434384329fdc733547879d25ba70335b3cf9e3d9cbc3e71fd172'
 
   binary_url ({
-    aarch64: 'https://dl.bintray.com/chromebrew/chromebrew/curl-7.55.1-chromeos-armv7l.tar.xz',
-     armv7l: 'https://dl.bintray.com/chromebrew/chromebrew/curl-7.55.1-chromeos-armv7l.tar.xz',
-       i686: 'https://dl.bintray.com/chromebrew/chromebrew/curl-7.55.1-chromeos-i686.tar.xz',
-     x86_64: 'https://dl.bintray.com/chromebrew/chromebrew/curl-7.55.1-chromeos-x86_64.tar.xz',
   })
   binary_sha256 ({
-    aarch64: '7ef956dad600af8a22681f2d03360b88900ced7f27d3515904ef3f9aac47685e',
-     armv7l: '7ef956dad600af8a22681f2d03360b88900ced7f27d3515904ef3f9aac47685e',
-       i686: '85e4c5086ff52f3c0e86db39fc23cf9fc942ebc2acfeb34cb9c02a59d1d7ad85',
-     x86_64: 'a033d6ed5133d8f0e6e6f76a38b2e4b6fb241803d21ff0b593e11d5a9481ed3c',
   })
 
+  depends_on 'groff' => :build
+  depends_on 'libssh2'
   depends_on 'openssl' => :build
   depends_on 'zlibpkg' => :build
-  depends_on 'libssh2'
-  depends_on 'groff' => :build
 
   def self.build
-    system "./configure", "--libdir=#{CREW_LIB_PREFIX}", "--disable-static"
-    system "make"
+    system './configure',
+      "--prefix=#{CREW_PREFIX}",
+      "--libdir=#{CREW_LIB_PREFIX}",
+      '--disable-debug',
+      '--disable-dependency-tracking',
+      '--disable-static'
+    system 'make'
   end
 
   def self.install
-    system "make", "DESTDIR=#{CREW_DEST_DIR}", "install"
+    system 'make', "DESTDIR=#{CREW_DEST_DIR}", 'install'
   end
 
   def self.check
-    system "make", "test"
+    system 'make', 'test'
   end
 end