Run spellchecker on depot_tools

This was made by running `codespell` and `scspell`
and then checking the results.

Change-Id: I169fd5b40294f83015075b4a899fbca263821f25
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/2144602
Commit-Queue: Quinten Yearsley <qyearsley@chromium.org>
Auto-Submit: Quinten Yearsley <qyearsley@chromium.org>
Reviewed-by: Edward Lesmes <ehmaldonado@chromium.org>
diff --git a/metrics.py b/metrics.py
index 37f3a8a..7b8d04a 100644
--- a/metrics.py
+++ b/metrics.py
@@ -190,7 +190,7 @@
   def _collect_metrics(self, func, command_name, *args, **kwargs):
     # If we're already collecting metrics, just execute the function.
     # e.g. git-cl split invokes git-cl upload several times to upload each
-    # splitted CL.
+    # split CL.
     if self.collecting_metrics:
       # Don't collect metrics for this function.
       # e.g. Don't record the arguments git-cl split passes to git-cl upload.