pkgs.formats.javaProperties: use lib.sources.sourceByGlobs

Uses the cleaner expression

pkgs/pkgs-lib/formats/java-properties/test/default.nix

@@ -72,8 +72,8 @@ stdenv.mkDerivation {
     )
   );
 
-  src = lib.sourceByRegex ./. [
-    ".*\\.java"
+  src = lib.sources.sourceByGlobs ./. [
+    "**/*.java"
   ];
   # On Linux, this can be C.UTF-8, but darwin + zulu requires en_US.UTF-8
   LANG = "en_US.UTF-8";