gdbm: 1.13 -> 1.14

See http://lists.gnu.org/archive/html/info-gnu/2018-01/msg00000.html
for release information

pkgs/development/libraries/gdbm/default.nix

···
 { stdenv, lib, buildPlatform, fetchurl }:
 
 stdenv.mkDerivation rec {
-  name = "gdbm-1.13";
+  name = "gdbm-1.14";
 
   src = fetchurl {
     url = "mirror://gnu/gdbm/${name}.tar.gz";
-    sha256 = "0lx201q20dvc70f8a3c9s7s18z15inlxvbffph97ngvrgnyjq9cx";
+    sha256 = "02dakgrq93xwgln8qfv3vs5jyz5yvds5nyzkx6rhg9v585x478dd";
   };
 
   doCheck = stdenv.buildPlatform == stdenv.hostPlatform;