MT#62763 build: Quote hash key

This hash key has a dash, which means it needs to be quoted, otherwise
it gets parsed as a bareword followed by a minus sign.

Warned-by: perl -w
Change-Id: Ic97e13cba5d5dfac9bc51d6c3264f7878d252b88

Build.PL

@@ -17,7 +17,7 @@ Module::Build->new(
     dist_version_from => 'lib/Data/HAL.pm',
     dynamic_config => 0,
     license => 'perl',
-    meta-spec => {
+    'meta-spec' => {
         url => 'http://module-build.sourceforge.net/META-spec-v1.4.html',
         version => '1.4',
     },