Uncrustify maxscale

See script directory for method. The script to run in the top level
MaxScale directory is called maxscale-uncrustify.sh, which uses
another script, list-src, from the same directory (so you need to set
your PATH). The uncrustify version was 0.66.

maxscale-system-test/execute_cmd.h

@@ -12,6 +12,6 @@ using namespace std;
  * @param res Pointer to variable that will contain command console output (stdout)
  * @return Process exit code
  */
-int execute_cmd(char * cmd, char ** res);
+int execute_cmd(char* cmd, char** res);
 
 #endif // EXECUTE_CMD_H