Update repo_launcher to 2.32

R=vapier@google.com

Change-Id: Ie9310706fb1f9d295fe5f0649788b674679f7f66
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/4326268
Commit-Queue: Mike Frysinger <vapier@chromium.org>
Auto-Submit: Josip Sokcevic <sokcevic@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>

repo_launcher

@@ -149,7 +149,7 @@ if not REPO_REV:
 BUG_URL = 'https://bugs.chromium.org/p/gerrit/issues/entry?template=Repo+tool+issue'
 
 # increment this whenever we make important changes to this script
-VERSION = (2, 30)
+VERSION = (2, 32)
 
 # increment this if the MAINTAINER_KEYS block is modified
 KEYRING_VERSION = (2, 3)
@@ -265,7 +265,8 @@ else:
   urllib.error = urllib2
 
 
-home_dot_repo = os.path.expanduser('~/.repoconfig')
+repo_config_dir = os.getenv('REPO_CONFIG_DIR', os.path.expanduser('~'))
+home_dot_repo = os.path.join(repo_config_dir, '.repoconfig')
 gpg_dir = os.path.join(home_dot_repo, 'gnupg')
 
 
@@ -447,8 +448,7 @@ def run_command(cmd, **kwargs):
     except UnicodeError:
       print('repo: warning: Invalid UTF-8 output:\ncmd: %r\n%r' % (cmd, output),
             file=sys.stderr)
-      # TODO(vapier): Once we require Python 3, use 'backslashreplace'.
-      return output.decode('utf-8', 'replace')
+      return output.decode('utf-8', 'backslashreplace')
 
   # Run & package the results.
   proc = subprocess.Popen(cmd, **kwargs)