Don't free() static data in libauparse

Hello,
The "interpretation" code in libuparse stores literal strings as interpreted data for the second operand of fcntl(). This causes a crash in free() when freeing the record.

The attached patch fixes the crash.
Mirek

diff -urN audit/auparse/interpret.c audit-1.7.4/auparse/interpret.c
@@ -732,7 +732,7 @@
 
 	s = fcntl_i2s(cmd);
 	if (s != NULL)
-		return s;
+		return strdup(s);
 	asprintf(&out, "unknown fcntl command(%d)", cmd);
 	return out;
 }

Applied. Thanks!

-Steve