improve grammar in comment

src/mips64/codegen-mips64.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/mips64/codegen-mips64.h"
 
 #if V8_TARGET_ARCH_MIPS64
 
 #include "src/codegen.h"
 #include "src/macro-assembler.h"
@@ skipping 24 matching lines @@
                       CodeObjectRequired::kNo);
 
   {
     Label lastb, unaligned, aligned, chkw,
           loop16w, chk1w, wordCopy_loop, skip_pref, lastbloop,
           leave, ua_chk16w, ua_loop16w, ua_skip_pref, ua_chkw,
           ua_chk1w, ua_wordCopy_loop, ua_smallCopy, ua_smallCopy_loop;
 
     // The size of each prefetch.
     uint32_t pref_chunk = 32;
-    // The maximum size of a prefetch, it must not be less then pref_chunk.
-    // If the real size of a prefetch is greater then max_pref_size and
+    // The maximum size of a prefetch, it must not be less than pref_chunk.
+    // If the real size of a prefetch is greater than max_pref_size and
     // the kPrefHintPrepareForStore hint is used, the code will not work
     // correctly.
     uint32_t max_pref_size = 128;
     DCHECK(pref_chunk < max_pref_size);
 
     // pref_limit is set based on the fact that we never use an offset
     // greater then 5 on a store pref and that a single pref can
     // never be larger then max_pref_size.
     uint32_t pref_limit = (5 * pref_chunk) + max_pref_size;
     int32_t pref_hint_load = kPrefHintLoadStreamed;
@@ skipping 1060 matching lines @@
   }
 }
 
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_MIPS64