THRIFT-4515: cross server test improvement: graceful test server shutdown

This closes #1509
diff --git a/test/tests.json b/test/tests.json
index 671c667..9c7668d 100644
--- a/test/tests.json
+++ b/test/tests.json
@@ -63,7 +63,8 @@
     "name": "d",
     "server": {
       "command": [
-        "thrift_test_server"
+        "thrift_test_server",
+	"--trace"
       ]
     },
     "client": {
@@ -438,12 +439,12 @@
       "compact",
       "json"
     ],
-        "server": {
+    "server": {
       "command": [
         "dotnet",
         "run",
-  "--no-build",
-                "--project=Server/Server.csproj",
+        "--no-build",
+        "--project=Server/Server.csproj",
         "server"
       ]
     },
@@ -452,8 +453,8 @@
       "command": [
         "dotnet",
         "run",
-  "--no-build",
-                "--project=Client/Client.csproj",
+        "--no-build",
+        "--project=Client/Client.csproj",
         "client"
       ]
     },