Merge pull request #1223 from plamentotev:patch-1

PiperOrigin-RevId: 633180722
Change-Id: I7b885b0e76f89e09c4a49174d622b03d9e1753a6

open_spiel/python/bots/gtp.py

@@ -96,7 +96,7 @@ def gtp_cmd(self, *args):
           continue  # Ignore leading newlines, possibly left from prev response.
       response += line
     if response.startswith("="):
-      return response[1:].strip()
+      return response[1:].strip().lower()
     else:
       raise CommandError(response[1:].strip())