Replace non-inclusive terms

Bug: 1118410, 1118413, 1118422, 1118424, 1118426
Bug: 1118428, 1118430, 1118434, 1118438, 1118442
Bug: 1118453, 1118454
Recipe-Nontrivial-Roll: chromiumos
Recipe-Nontrivial-Roll: build
Change-Id: I43e6305f8c3136774f01b57f12bb442bcb863371
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/2551388
Commit-Queue: Josip Sokcevic <sokcevic@google.com>
Reviewed-by: Edward Lesmes <ehmaldonado@chromium.org>
diff --git a/git_common.py b/git_common.py
index e9b3220..2bc1b5c 100644
--- a/git_common.py
+++ b/git_common.py
@@ -75,7 +75,7 @@
 
 
 # NOTE: This list is DEPRECATED in favor of the Infra Git wrapper:
-# https://chromium.googlesource.com/infra/infra/+/master/go/src/infra/tools/git
+# https://chromium.googlesource.com/infra/infra/+/HEAD/go/src/infra/tools/git
 #
 # New entries should be added to the Git wrapper, NOT to this list. "git_retry"
 # is, similarly, being deprecated in favor of the Git wrapper.
@@ -629,7 +629,7 @@
 
   A commitref is anything which can resolve to a commit. Popular examples:
     * 'HEAD'
-    * 'origin/master'
+    * 'origin/main'
     * 'cool_branch~2'
   """
   try: