Switch to new download format and update source.sh script

pkg.info

@@ -1,9 +1,22 @@
 name: sudo
 description: Utility that grants users the ability to run commands as root
 version: 1.9.17p2
+revision: 2
 url: https://www.sudo.ws/sudo/
 license: ISC
 architecture: any
-depends: ["glibc","openldap","openssl","pam","zlib"]
-keep: ["etc/sudoers","etc/sudoers.d/"]
 type: source
+keep:
+  - etc/sudoers
+  - etc/sudoers.d/
+depends:
+  - glibc
+  - openldap
+  - openssl
+  - pam
+  - zlib
+downloads:
+  - url: https://www.sudo.ws/dist/sudo-${BPM_PKG_VERSION}.tar.gz
+    extract_to: ${BPM_SOURCE}
+    extract_strip_components: 1
+    checksum: 4a38a1ab3adb1199257edc2a7c4a2bd714665eb605b04368843b06dada2cfcfb