IVGCVSW-4825 Set default value for --file-format argument in ExecuteNetwork

Signed-off-by: Finn Williams <Finn.Williams@arm.com>
Change-Id: I834ef1ec7c2c7b5ece1c6d1cf3cfe5d856cde349
diff --git a/tests/ExecuteNetwork/ExecuteNetwork.cpp b/tests/ExecuteNetwork/ExecuteNetwork.cpp
index 7dc9b65..57b8692 100644
--- a/tests/ExecuteNetwork/ExecuteNetwork.cpp
+++ b/tests/ExecuteNetwork/ExecuteNetwork.cpp
@@ -119,7 +119,7 @@
              "If enabled then the 'file-only' test mode of external profiling will be enabled")
             ("counter-capture-period,u", po::value<uint32_t>(&counterCapturePeriod)->default_value(150u),
              "If profiling is enabled in 'file-only' mode this is the capture period that will be used in the test")
-            ("file-format", po::value(&fileFormat),
+            ("file-format", po::value(&fileFormat)->default_value("binary"),
              "If profiling is enabled specifies the output file format")
             ("parse-unsupported", po::bool_switch()->default_value(false),
                 "Add unsupported operators as stand-in layers (where supported by parser)");