additional minor fix for append

Author: amwmedia

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "node-plop",
-  "version": "0.21.0",
+  "version": "0.22.0",
   "description": "programmatic plopping for fun and profit",
   "main": "lib/index.js",
   "types": "index.d.ts",

package.json

@@ -15,19 +15,18 @@ const doAppend = function*(data, cfg, plop, fileData) {
 	// if the appended string should be unique (default),
 	// remove any occurence of it (but only if pattern would match)
 
+	const { separator = '\n' } = cfg;
 	if (cfg.unique !== false) {
 		// only remove after "pattern", so that we remove not too much accidentally
 		const parts = fileData.split(cfg.pattern);
 		const lastPart = parts[parts.length - 1];
 		const lastPartWithoutDuplicates = lastPart.replace(
-			new RegExp(stringToAppend, 'g'),
+			new RegExp(separator + stringToAppend, 'g'),
 			''
 		);
 		fileData = fileData.replace(lastPart, lastPartWithoutDuplicates);
 	}
 
-	const { separator = '\n' } = cfg;
-
 	// add the appended string to the end of the "fileData" if "pattern"
 	// was not provided, i.e. null or false
 	if (!cfg.pattern) {