test/: apply clang-format

Change-Id: I1138fbeff5f63beb5c0de2c357793da12502d453
diff --git a/test/i420_video_source.h b/test/i420_video_source.h
index 0a18480..4957382 100644
--- a/test/i420_video_source.h
+++ b/test/i420_video_source.h
@@ -21,14 +21,11 @@
 // so that we can do actual file encodes.
 class I420VideoSource : public YUVVideoSource {
  public:
-  I420VideoSource(const std::string &file_name,
-                  unsigned int width, unsigned int height,
-                  int rate_numerator, int rate_denominator,
+  I420VideoSource(const std::string &file_name, unsigned int width,
+                  unsigned int height, int rate_numerator, int rate_denominator,
                   unsigned int start, int limit)
-      : YUVVideoSource(file_name, VPX_IMG_FMT_I420,
-                       width, height,
-                       rate_numerator, rate_denominator,
-                       start, limit) {}
+      : YUVVideoSource(file_name, VPX_IMG_FMT_I420, width, height,
+                       rate_numerator, rate_denominator, start, limit) {}
 };
 
 }  // namespace libvpx_test