fix(xform): remove duplicate definition of EX_OSERR

Remove the duplicate definition of EX_OSERR by including utils.h for xform.

Author: stevenh

xform.c

@@ -17,17 +17,9 @@
 #include <stdarg.h>
 #include <ctype.h>
 
-#ifndef _WIN32
- #include <err.h>
- #include <sysexits.h>
-#endif
-
+#include "utils.h"
 #include "xform.h"
 
-#ifndef EX_OSERR
-#define EX_OSERR 71
-#endif
-
 /*
  * Flag controlling if xform methods do any processing except transforming
  * NULL to blank string