Update platform.ts

Author: kamszyc

src/platform.ts

@@ -95,8 +95,8 @@ export function getCurrentPlatform() {
 
                 break;
             case 'linuxmint':
-                const versionId = getValue("VERSION_ID");
-                if (versionId.startsWith("18")) {
+                const lmVersionId = getValue("VERSION_ID");
+                if (lmVersionId.startsWith("18")) {
                     // Linux Mint 18 is binary compatible with Ubuntu 16.04
                     return Platform.Ubuntu16;
                 }