[WebAssembly] Fix typos in comment. NFC.

Patch by Nicholas Wilson!

llvm-svn: 325370
diff --git a/lld/wasm/MarkLive.cpp b/lld/wasm/MarkLive.cpp
index 7a0a9e9..2968130 100644
--- a/lld/wasm/MarkLive.cpp
+++ b/lld/wasm/MarkLive.cpp
@@ -59,9 +59,9 @@
     if (!Sym->isHidden())
       Enqueue(Sym);
 
-  // The ctor fuctions are all used the synthetic __wasm_call_ctors function,
-  // but since this function is created in-place it doesn't contain reloctations
-  // which mean we have to manually mark the ctors.
+  // The ctor functions are all used in the synthetic __wasm_call_ctors
+  // function, but since this function is created in-place it doesn't contain
+  // reloctations which mean we have to manually mark the ctors.
   for (const ObjFile *Obj : Symtab->ObjectFiles) {
     const WasmLinkingData &L = Obj->getWasmObj()->linkingData();
     for (const WasmInitFunc &F : L.InitFunctions)