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_map_branches.py b/git_map_branches.py
index c35368f..8c5ea71 100755
--- a/git_map_branches.py
+++ b/git_map_branches.py
@@ -6,7 +6,7 @@
 """Print dependency tree of branches in local repo.
 
 Example:
-origin/master
+origin/main
   cool_feature
     dependent_feature
     other_dependent_feature