Merge pull request #125009 from NixOS/backport-124851-to-release-21.05

pkgs/development/libraries/arrow-cpp/default.nix

@@ -22,12 +22,12 @@ let
 
 in stdenv.mkDerivation rec {
   pname = "arrow-cpp";
-  version = "4.0.0";
+  version = "4.0.1";
 
   src = fetchurl {
     url =
       "mirror://apache/arrow/arrow-${version}/apache-arrow-${version}.tar.gz";
-    sha256 = "1bj9jr0pgq9f2nyzqiyj3cl0hcx3c83z2ym6rpdkp59ff2zx0caa";
+    sha256 = "0vl926i6jvsvj5vigdgqzp9v1i1h5zzj1abqr6qwc9drfsibzk3m";
   };
   sourceRoot = "apache-arrow-${version}/cpp";
 
@@ -146,11 +146,11 @@ in stdenv.mkDerivation rec {
       --exclude-regex '^(${builtins.concatStringsSep "|" excludedTests})$'
   '';
 
-  meta = {
+  meta = with lib; {
     description = "A  cross-language development platform for in-memory data";
     homepage = "https://arrow.apache.org/";
-    license = lib.licenses.asl20;
-    platforms = lib.platforms.unix;
-    maintainers = with lib.maintainers; [ tobim veprbl ];
+    license = licenses.asl20;
+    platforms = platforms.unix;
+    maintainers = with maintainers; [ tobim veprbl ];
   };
 }