MXS-2900 Cleanup system test information generation

The system test information array now has the full path to the MaxScale
configuration file. The array now only contains labels given in
CMakeLists.txt. The resulting .cc-file has linebreaks for readability.

maxscale-system-test/config_test.cpp

@@ -7,6 +7,8 @@
 #include <unistd.h>
 #include "testconnections.h"
 
+using std::string;
+
 const char* bad_configs[] =
 {
     "bug359",
@@ -35,8 +37,9 @@ int main(int argc, char** argv)
 
     for (int i = 0; bad_configs[i]; i++)
     {
-        printf("Testing %s...\n", bad_configs[i]);
-        if (test->test_bad_config(0, bad_configs[i]))
+        string config_file_path = (string)test_dir + "/cnf/maxscale.cnf.template." + bad_configs[i];
+        printf("Testing %s...\n", config_file_path.c_str());
+        if (test->test_bad_config(0, config_file_path))
         {
             printf("FAILED\n");
             rval++;