libpng12: security update 1.2.53 -> 1.2.54

Part of fix for #11030.
Also refactor meta.

1 files changed, 5 insertions, 5 deletions

diff --git a/pkgs/development/libraries/libpng/12.nix b/pkgs/development/libraries/libpng/12.nix
index 3071aa3fdfc..d2fa6b184d6 100644
--- a/pkgs/development/libraries/libpng/12.nix
+++ b/pkgs/development/libraries/libpng/12.nix
@@ -3,11 +3,11 @@
 assert !(stdenv ? cross) -> zlib != null;
 
 stdenv.mkDerivation rec {
-  name = "libpng-1.2.53";
+  name = "libpng-1.2.54";
 
   src = fetchurl {
     url = "mirror://sourceforge/libpng/${name}.tar.xz";
-    sha256 = "02jwfqk1ahqfvbs9gdyb5v0123by9ws6m7jnfvainig7i7v4jpml";
+    sha256 = "0wnjy7gqn0f24qrlggs7kl0ij59by413j1xmqp12n3vqh9j531fg";
   };
 
   propagatedBuildInputs = [ zlib ];
@@ -21,11 +21,11 @@ stdenv.mkDerivation rec {
 
   configureFlags = "--enable-static";
 
-  meta = {
+  meta = with stdenv.lib; {
     description = "The official reference implementation for the PNG file format";
     homepage = http://www.libpng.org/pub/png/libpng.html;
-    license = stdenv.lib.licenses.libpng;
-    maintainers = with stdenv.lib.maintainers; [ fuuzetsu ];
+    license = licenses.libpng;
+    maintainers = [ maintainers.fuuzetsu ];
     branch = "1.2";
   };
 }