qgs: add space between program name & first arg in usage

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>

Author: berrange

QuoteGeneration/quote_wrapper/qgs/server_main.cpp

@@ -75,7 +75,7 @@ int main(int argc, const char* argv[])
     unsigned long int num_threads = 0;
     char *endptr = NULL;
     if (argc > 4) {
-        cout << "Usage: " << argv[0] << "[--no-daemon] [-p=port_number] [-n=number_threads]"
+        cout << "Usage: " << argv[0] << " [--no-daemon] [-p=port_number] [-n=number_threads]"
              << endl;
         exit(1);
     }
@@ -114,7 +114,7 @@ int main(int argc, const char* argv[])
             cout << "thread number [" << num_threads << "] found in cmdline" << endl;
             continue;
         } else {
-            cout << "Usage: " << argv[0] << "[--no-daemon] [-p=port_number] [-n=number_threads]"
+            cout << "Usage: " << argv[0] << " [--no-daemon] [-p=port_number] [-n=number_threads]"
                 << endl;
             exit(1);
         }