JSON::Diffable fix Makefile.PL typo

gistfile1.txt

diff --git a/Makefile.PL b/Makefile.PL
index 7c5ca12..3a4b73f 100644
--- a/Makefile.PL
+++ b/Makefile.PL
@@ -19,7 +19,7 @@ my $mymeta = do { no warnings; $ExtUtils::MakeMaker::VERSION >
 
 WriteMakefile(
   NAME => 'JSON-Diffable',
-  VERSION_FROM => 'lib/JSON/Diffable.pm'
+  VERSION_FROM => 'lib/JSON/Diffable.pm',
   PREREQ_PM => {
     %requires,
     ($mymeta_works ? () : (%build_requires)),