worker: use command with resolved obfuscation as command_id

worker/buildbot_worker/runprocess.py

@@ -308,8 +308,6 @@ def __init__(
         @param useProcGroup: (default True) use a process group for non-PTY
             process invocations
         """
-        self.command_id = command
-
         if logfiles is None:
             logfiles = {}
 
@@ -321,6 +319,9 @@ def obfus(w):
                 return w
 
             command = [obfus(w) for w in command]
+
+        self.command_id = command
+
         # We need to take unicode commands and arguments and encode them using
         # the appropriate encoding for the worker.  This is mostly platform
         # specific, but can be overridden in the worker's buildbot.tac file.