Separate out cmdline so that it can be used in tool and test builds
diff --git a/grpc.gyp b/grpc.gyp
index b394b5e..40f6f54 100644
--- a/grpc.gyp
+++ b/grpc.gyp
@@ -505,7 +505,6 @@
         'test/core/end2end/fixtures/http_proxy_fixture.cc',
         'test/core/end2end/fixtures/proxy.cc',
         'test/core/iomgr/endpoint_tests.cc',
-        'test/core/util/cmdline.cc',
         'test/core/util/debugger_macros.cc',
         'test/core/util/grpc_profiler.cc',
         'test/core/util/histogram.cc',
@@ -521,6 +520,7 @@
         'test/core/util/subprocess_windows.cc',
         'test/core/util/tracer_util.cc',
         'test/core/util/trickle_endpoint.cc',
+        'test/core/util/cmdline.cc',
         'src/core/lib/backoff/backoff.cc',
         'src/core/lib/channel/channel_args.cc',
         'src/core/lib/channel/channel_stack.cc',
@@ -722,7 +722,6 @@
         'test/core/end2end/fixtures/http_proxy_fixture.cc',
         'test/core/end2end/fixtures/proxy.cc',
         'test/core/iomgr/endpoint_tests.cc',
-        'test/core/util/cmdline.cc',
         'test/core/util/debugger_macros.cc',
         'test/core/util/grpc_profiler.cc',
         'test/core/util/histogram.cc',
@@ -738,6 +737,7 @@
         'test/core/util/subprocess_windows.cc',
         'test/core/util/tracer_util.cc',
         'test/core/util/trickle_endpoint.cc',
+        'test/core/util/cmdline.cc',
         'src/core/lib/backoff/backoff.cc',
         'src/core/lib/channel/channel_args.cc',
         'src/core/lib/channel/channel_stack.cc',