Fix some comment typos

source/scale_common.cc

 /*
  *  Copyright 2013 The LibYuv 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 in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS. All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 403 matching lines @@
   if (dst_width & 1) {
     dst_ptr[0] = src_ptr[0];
   }
 }
 
 // (1-f)a + fb can be replaced with a + f(b-a)
 #if defined(__arm__) || defined(__aarch64__)
 #define BLENDER(a, b, f) (uint8)((int)(a) + \
     ((((int)((f)) * ((int)(b) - (int)(a))) + 0x8000) >> 16))
 #else
-// inteluses 7 bit math with rounding.
+// Intel uses 7 bit math with rounding.
 #define BLENDER(a, b, f) (uint8)((int)(a) + \
     (((int)((f) >> 9) * ((int)(b) - (int)(a)) + 0x40) >> 7))
 #endif
 
 void ScaleFilterCols_C(uint8* dst_ptr, const uint8* src_ptr,
                        int dst_width, int x, int dx) {
   int j;
   for (j = 0; j < dst_width - 1; j += 2) {
     int xi = x >> 16;
     int a = src_ptr[xi];
@@ skipping 715 matching lines @@
     *dx = -*dx;
     // src_width = -src_width;   // Caller must do this.
   }
 }
 #undef CENTERSTART
 
 #ifdef __cplusplus
 }  // extern "C"
 }  // namespace libyuv
 #endif