[elf2] Use value-initialization instead of memset.

llvm-svn: 252006
diff --git a/lld/ELF/Writer.cpp b/lld/ELF/Writer.cpp
index fe87d92..fd5e494 100644
--- a/lld/ELF/Writer.cpp
+++ b/lld/ELF/Writer.cpp
@@ -692,8 +692,7 @@
   setPhdr(&Phdrs[++PhdrIdx], PT_LOAD, PF_R, 0, getVAStart(), FileOff,
           Target->getPageSize());
 
-  Elf_Phdr TlsPhdr;
-  std::memset(&TlsPhdr, 0, sizeof(Elf_Phdr));
+  Elf_Phdr TlsPhdr{};
   uintX_t ThreadBSSOffset = 0;
   // Create phdrs as we assign VAs and file offsets to all output sections.
   SmallPtrSet<Elf_Phdr *, 8> Closed;