libraw:libraw_fuzzer: Use-of-uninitialized-value in LibRaw::identify

Detailed Report: https://oss-fuzz.com/testcase?key=5767589518376960 Project: libraw Fuzzing Engine: libFuzzer Fuzz Target: librawfuzzer Job Type: libfuzzermsanlibraw Platform Id: linux Crash Type: Use-of-uninitialized-value Crash Address: Crash State: LibRaw::identify LibRaw::opendatastream...