Add parentheses around `&`.

llvm-svn: 299503
diff --git a/lld/ELF/LinkerScript.cpp b/lld/ELF/LinkerScript.cpp
index a39e843..02eb5d8 100644
--- a/lld/ELF/LinkerScript.cpp
+++ b/lld/ELF/LinkerScript.cpp
@@ -643,7 +643,7 @@
   if (!Sec)
     return;
 
-  if (Cmd->AddrExpr && Sec->Flags & SHF_ALLOC)
+  if (Cmd->AddrExpr && (Sec->Flags & SHF_ALLOC))
     setDot(Cmd->AddrExpr, Cmd->Location);
 
   if (Cmd->LMAExpr) {