Disable some code in the "tools" module which is only for debugging purposes

src/tools.c

@@ -550,6 +550,8 @@ char *nspaces(const size_t n)
 
 
 
+#if defined(DEBUG) || 0
+
 /**
  *  Debugging Code: Display contents of input structure
  */
@@ -590,6 +592,8 @@ void print_input_lines(const char *heading)
     fprintf(stderr, "Final newline: %s\n", input.final_newline ? "yes" : "no");
 }
 
+#endif
+
 
 
 /**