Actually dump opened files to log file

Author: asarium

code/cfile/cfile.cpp

@@ -879,6 +879,7 @@ int cfget_cfile_block()
 
 	// Dump a list of all opened files
 	mprintf(("Out of cfile blocks! Currently opened files:\n"));
+	dump_opened_files();
 
 	Assertion(false, "There are no more free cfile blocks. This means that there are too many files opened by FSO.\n"
 		"This is probably caused by a programming or scripting error where a file does not get closed."); // out of free cfile blocks