1RUN: LLVMFuzzer-SimpleTest -foo_bar=1 2>&1 | FileCheck %s --check-prefix=FOO_BAR
2FOO_BAR: WARNING: unrecognized flag '-foo_bar=1'; use -help=1 to list all flags
3FOO_BAR: BINGO
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5RUN: LLVMFuzzer-SimpleTest -runs=10 --max_len=100 2>&1 | FileCheck %s --check-prefix=DASH_DASH
6DASH_DASH: WARNING: did you mean '-max_len=100' (single dash)?
7DASH_DASH: INFO: A corpus is not provided, starting from an empty corpus
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