Log Message:

Update to nbawk-20110509
   - NetBSD PR/30294: nawk doesn't handle RS as a RE but
     as a single character
   - NetBSD PR/42320: LC_NUMERIC in awk is not POSIX  compliant
   - NetBSD PR/43981: too small limit on a number of -f options
   - NetBSD PR/44063: setting NF doesn't change $<fieldnum>
   - NetBSD PR/44876: incorrect return value of function srand()
   - Other changes