folly: 2018.02.26.00 -> 2018.03.26.00

Semi-automatic update generated by https://github.com/ryantm/nixpkgs-update tools.

This update was made based on information from https://repology.org/metapackage/folly/versions.

These checks were done:

- built on NixOS
- Warning: no binary found that responded to help or version flags. (This warning appears even if the package isn't expected to have binaries.)
- found 2018.03.26.00 with grep in /nix/store/3gv71wva8lpjgwvi5rrdq4441xk112w7-folly-2018.03.26.00
- directory tree listing: https://gist.github.com/936223d2c5bbeea7a741d5500253330a

pkgs/development/libraries/folly/default.nix

@@ -3,13 +3,13 @@
 
 stdenv.mkDerivation rec {
   name = "folly-${version}";
-  version = "2018.02.26.00";
+  version = "2018.03.26.00";
 
   src = fetchFromGitHub {
     owner = "facebook";
     repo = "folly";
     rev = "v${version}";
-    sha256 = "1pdb3nnly0x4x8yy1r13xgh9zhn34c9dq0b3nhxr8gwbzf643j1c";
+    sha256 = "137d9b9k2m02r8f2w31qj3gc18hpm5g51bcl60g6vzdqzwzizzyr";
   };
 
   nativeBuildInputs = [ autoreconfHook python pkgconfig ];