Bump acorn from 6.2.0 to 6.4.1

package-lock.jsonmodified+3-3

Changes to package-lock.json

		⋯1,277 linesShow the 1,277 lines above this hunk@@ -1278,9 +1278,9 @@
1278	1278	}
1279	1279	},
1280	1280	"acorn": {
1281		- "version": "6.2.0",
1282		- "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.2.0.tgz",
1283		- "integrity": "sha512-8oe72N3WPMjA+2zVG71Ia0nXZ8DpQH+QyyHO+p06jT8eg8FGG3FbcUIi8KziHlAfheJQZeoqbvq1mQSQHXKYLw=="
	1281	+ "version": "6.4.1",
	1282	+ "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.1.tgz",
	1283	+ "integrity": "sha512-ZVA9k326Nwrj3Cj9jlh3wGFutC2ZornPNARZwsNYqQYgN0EsV2d53w5RN/co65Ohn4sUAUtb1rSUAOD6XN9idA=="
1284	1284	},
1285	1285	"ajv": {
1286	1286	"version": "6.10.0",