Tinderbox break - change OS/2 only code - third time is a charm

dbm/include/mcom_db.h

@@ -156,7 +156,7 @@
 #ifndef XP_OS2 
 #define MAXPATHLEN 	1024               
 #else
-/* #include "os2file.h" includes dirent.h */
+#include <dirent.h>
 #endif
 
 #define	EFTYPE		EINVAL		/* POSIX 1003.1 format errno. */