systemd/fuzz-unit-file: Use-of-uninitialized-value in streq_ptr

Project: https://github.com/systemd/systemd.git Detailed report: https://oss-fuzz.com/testcase?key=4908210742886400 Project: systemd Fuzzer: libFuzzersystemdfuzz-unit-file Fuzz target binary: fuzz-unit-file Job Type: libfuzzermsansystemd Platform Id: linux Crash Type: Use-of-uninitialized-value...