picard-tools: install binary with write_jar_script

Author: EricFromCanada

Formula/p/picard-tools.rb

@@ -18,10 +18,7 @@ class PicardTools < Formula
 
   def install
     libexec.install "picard.jar"
-    (bin/"picard").write <<~EOS
-      #!/bin/bash
-      exec "#{Formula["openjdk"].opt_bin}/java" $JAVA_OPTS -jar "#{libexec}/picard.jar" "$@"
-    EOS
+    bin.write_jar_script libexec/"picard.jar", "picard", "$JAVA_OPTS"
   end
 
   test do