Fix comment

Change-Id: Ibd687d1fd8bdce9719c8efb38fc78a341ae4764d
Reviewed-on: https://chromium-review.googlesource.com/c/1318770Reviewed-by: Noel Gordon <noel@chromium.org>
Commit-Queue: Luciano Pacheco <lucmult@chromium.org>
Cr-Commit-Position: refs/heads/master@{#605516}

ui/file_manager/integration_tests/file_manager/metadata.js

@@ -7,7 +7,7 @@
 (function() {
 
 /**
- * Check if |value| equals the |desiredValue| with 1% margin of tolerance.
+ * Check if |value| equals the |desiredValue| within 1% margin of tolerance.
  * @param {number} value The variable value.
  * @param {number} desiredValue The desired value.
  * @return {boolean}