media/gpu/vdatest: fix help message

The help message was missing a few linebreaks, which made it
display incorrectly.

BUG=None
TEST=Ran VDAtest and checked the help message was properly
displayed.

Change-Id: I3aa2b15a44868f4333710d6a9a36891c8d75452a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2145749Reviewed-by: David Staessens <dstaessens@chromium.org>
Reviewed-by: Jeffrey Kardatzke <jkardatzke@google.com>
Commit-Queue: Alexandre Courbot <acourbot@chromium.org>
Cr-Commit-Position: refs/heads/master@{#813568}

media/gpu/video_decode_accelerator_perf_tests.cc

@@ -49,10 +49,10 @@ constexpr const char* help_msg =
     "                       will be stored in the current working directory.\n"
     "  --use_vd             use the new VD-based video decoders, instead of\n"
     "                       the default VDA-based video decoders.\n"
-    "  --use_vd_vda         use the new VD-based video decoders with a wrapper"
-    "                       that translates to the VDA interface, used to test"
-    "                       interaction with older components expecting the VDA"
-    "                       interface.\n"
+    "  --use_vd_vda         use the new VD-based video decoders with a\n"
+    "                       wrapper that translates to the VDA interface,\n"
+    "                       used to test interaction with older components\n"
+    "                       expecting the VDA interface.\n"
     "  --gtest_help         display the gtest help and exit.\n"
     "  --help               display this help and exit.\n";
 

media/gpu/video_decode_accelerator_tests.cc

@@ -47,11 +47,10 @@ constexpr const char* help_msg =
     "                       e.g. --vmodule=*media/gpu*=2.\n\n"
     "  --disable_validator  disable frame validation.\n"
     "  --use_vd             use the new VD-based video decoders, instead of\n"
-    "                       the default VDA-based video decoders.\n\n"
-    "  --use_vd_vda         use the new VD-based video decoders with a wrapper"
-    "                       that translates to the VDA interface, used to test"
-    "                       interaction with older components expecting the VDA"
-    "                       interface.\n"
+    "                       the default VDA-based video decoders.\n"
+    "  --use_vd_vda         use the new VD-based video decoders with a\n"
+    "                       wrapper that translates to the VDA interface,\n"
+    "                       used to test interaction with older components\n"
     "  --output_frames      write the selected video frames to disk, possible\n"
     "                       values are \"all|corrupt\".\n"
     "  --output_format      set the format of frames saved to disk, supported\n"