etcfs fix prebuilt binary

If you don't want to build the fixed etcfs yourself, here is a prebuilt binary.
created by clang -O3 -fuse-ld=lld -flto=full -static -std=c99 -D_FILE_OFFSET_BITS=64 etcfs.c -o etcfs -lfuse3 -lpthread
from e7e8873 with musl libc
etcfs: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), statically linked, BuildID[sha1]=f81eba7ed3f8a76f743c1604b0569bc03e2cf80f, with debug_info, not stripped
sha256 a02412015109d50eddb1d57f674bbde34064b94a940129e6dd409b75ec120f09 etcfs