Avoid **/tmp/** when looking for package.json's. (#140)

Avoid `**/tmp/**` when looking for `package.json`'s.

Author: Robert Jackson

Diff for: transforms/helpers/util/get-telemetry-for.js

@@ -9,7 +9,7 @@ const APP_PATHS = {};
 
 let packagePaths = walkSync('./', {
   globs: ['**/package.json'],
-  ignore: ['node_modules/**'],
+  ignore: ['**/tmp/**', '**/node_modules/**'],
 });
 
 for (let packagePath of packagePaths) {