included if HAVE_SYS_CDEFS_H is defined. Other cleanups related to
cdefs.h. r=shaver.
Modified files: dbm/src/snprintf.c dbm/include/cdefs.h
dbm/include/mcom_db.h dbm/include/nsres.h
git-svn-id: svn://10.0.0.236/trunk@105210 18797224-902f-48f8-a5cc-f745e15eee43