switch to 4 space indent

Leave the recipes/ code at 2 space to match the rest of the recipes
project in other repos.

Reformatted using:
files=( $(
	git ls-tree -r --name-only HEAD | \
		grep -Ev -e '^(third_party|recipes)/' | \
		grep '\.py$';
	git grep -l '#!/usr/bin/env.*python' | grep -v '\.py$'
) )
parallel ./yapf -i -- "${files[@]}"
~/chromiumos/chromite/contrib/reflow_overlong_comments "${files[@]}"

The files that still had strings that were too long were manually
reformatted because they were easy and only a few issues.
autoninja.py
clang_format.py
download_from_google_storage.py
fix_encoding.py
gclient_utils.py
git_cache.py
git_common.py
git_map_branches.py
git_reparent_branch.py
gn.py
my_activity.py
owners_finder.py
presubmit_canned_checks.py
reclient_helper.py
reclientreport.py
roll_dep.py
rustfmt.py
siso.py
split_cl.py
subcommand.py
subprocess2.py
swift_format.py
upload_to_google_storage.py

These files still had lines (strings) that were too long, so the pylint
warnings were suppressed with a TODO.
auth.py
gclient.py
gclient_eval.py
gclient_paths.py
gclient_scm.py
gerrit_util.py
git_cl.py
presubmit_canned_checks.py
presubmit_support.py
scm.py

Change-Id: Ia6535c4f2c48d46b589ec1e791dde6c6b2ea858f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/4836379
Commit-Queue: Josip Sokcevic <sokcevic@chromium.org>
Auto-Submit: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Josip Sokcevic <sokcevic@chromium.org>
diff --git a/utils.py b/utils.py
index 3f16ce9..a85d2f7 100644
--- a/utils.py
+++ b/utils.py
@@ -7,19 +7,19 @@
 
 
 def depot_tools_version():
-  depot_tools_root = os.path.dirname(os.path.abspath(__file__))
-  try:
-    commit_hash = subprocess.check_output(['git', 'rev-parse', 'HEAD'],
-                                          cwd=depot_tools_root).decode(
-                                              'utf-8', 'ignore')
-    return 'git-%s' % commit_hash
-  except Exception:
-    pass
+    depot_tools_root = os.path.dirname(os.path.abspath(__file__))
+    try:
+        commit_hash = subprocess.check_output(['git', 'rev-parse', 'HEAD'],
+                                              cwd=depot_tools_root).decode(
+                                                  'utf-8', 'ignore')
+        return 'git-%s' % commit_hash
+    except Exception:
+        pass
 
-  # git check failed, let's check last modification of frequently checked file
-  try:
-    mtime = os.path.getmtime(
-        os.path.join(depot_tools_root, 'infra', 'config', 'recipes.cfg'))
-    return 'recipes.cfg-%d' % (mtime)
-  except Exception:
-    return 'unknown'
+    # git check failed, let's check last modification of frequently checked file
+    try:
+        mtime = os.path.getmtime(
+            os.path.join(depot_tools_root, 'infra', 'config', 'recipes.cfg'))
+        return 'recipes.cfg-%d' % (mtime)
+    except Exception:
+        return 'unknown'