options: allow GODEBUG env variable (#2874)

cf golang/go#49075

Co-authored-by: Oliver Chang <oliverchang@users.noreply.github.com>

Author: catenacyber

src/clusterfuzz/_internal/bot/fuzzers/options.py

@@ -28,7 +28,7 @@
 OPTIONS_FILE_EXTENSION = '.options'
 
 # Whitelist for env variables .options files can set.
-ENV_VAR_WHITELIST = set([afl_constants.DONT_DEFER_ENV_VAR])
+ENV_VAR_WHITELIST = {afl_constants.DONT_DEFER_ENV_VAR, 'GODEBUG'}
 
 
 class FuzzerOptionsException(Exception):