Merge pull request #2 from samcv/SPDX-license

Use SPDX identifier in license field of META6.json

META6.json

@@ -1,6 +1,7 @@
 {
     "perl"        : "6.*",
     "name"        : "path-coverage",
+    "license"     : "Artistic-2.0",
     "version"     : "0.2",
     "authors"	  : ["github:teodozjan"],
     "description" : "Checks whether package name equals with module path and creates provides section from path",