yhirose 35c4026c7f Make fuzz_test robust to missing corpus files ...

When a glob like clusterfuzz-testcase-minimized-foo_fuzzer-* did not
match anything, bash passed the literal pattern through. The standalone
runner then tried to open it, tellg() returned -1, and the resulting
size_t cast (SIZE_MAX) crashed std::vector with length_error. This made
fuzz_test fail loudly during bisects to commits before a corpus file
landed. Filter each glob through a -f test so unmatched patterns are
silently skipped with a "(no XXX corpus)" notice, mirroring what was
already done for url_parser_fuzzer.

2026-05-01 21:50:26 +09:00

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