revert comment lines

Author: mertcanaltin

lib/buffer.js

@@ -633,7 +633,11 @@ Buffer.concat = function concat(list, length) {
       pos += buf.length;
     }
 
+    // Note: `length` is always equal to `buffer.length` at this point
     if (pos < length) {
+      // Zero-fill the remaining bytes if the specified `length` was more than
+      // the actual total length, i.e. if we have some remaining allocated bytes
+      // there were not initialized.
       TypedArrayPrototypeFill(buffer, 0, pos, length);
     }
     return buffer;
@@ -661,7 +665,11 @@ Buffer.concat = function concat(list, length) {
     pos += buf.length;
   }
 
+  // Note: `length` is always equal to `buffer.length` at this point
   if (pos < length) {
+    // Zero-fill the remaining bytes if the specified `length` was more than
+    // the actual total length, i.e. if we have some remaining allocated bytes
+    // there were not initialized.
     TypedArrayPrototypeFill(buffer, 0, pos, length);
   }