tests/unit-test-(server|client).c: satisfy older compilers that ip_or_device is safe to use

Signed-off-by: Jim Klimov <[email protected]>

Author: jimklimov

tests/unit-test-client.c

@@ -94,7 +94,7 @@ int main(int argc, char *argv[])
     int use_backend;
     int success = FALSE;
     int old_slave;
-    char *ip_or_device;
+    char *ip_or_device = NULL;
 
     if (argc > 1) {
         if (strcmp(argv[1], "tcp") == 0) {

tests/unit-test-server.c

@@ -42,7 +42,7 @@ int main(int argc, char *argv[])
     int use_backend;
     uint8_t *query;
     int header_length;
-    char *ip_or_device;
+    char *ip_or_device = NULL;
 
     if (argc > 1) {
         if (strcmp(argv[1], "tcp") == 0) {