9083 replace regex implementation with tre

*** 122,131 ****
--- 122,149 ----
  usr/src/grub/grub-0.97/stage2/moddiv.c
  usr/src/grub/grub-0.97/stage2/pc_slice.h
  usr/src/grub/grub-0.97/stage2/shared.h
  usr/src/grub/grub-0.97/stage2/stage1_5.c
  usr/src/lib/libc/port/gen/arc4random_uniform.c
+ usr/src/lib/libc/port/regex/regcomp.c
+ usr/src/lib/libc/port/regex/regerror.c
+ usr/src/lib/libc/port/regex/regexec.c
+ usr/src/lib/libc/port/regex/tre-ast.c
+ usr/src/lib/libc/port/regex/tre-ast.h
+ usr/src/lib/libc/port/regex/tre-compile.c
+ usr/src/lib/libc/port/regex/tre-compile.h
+ usr/src/lib/libc/port/regex/tre-internal.h
+ usr/src/lib/libc/port/regex/tre-match-backtrack.c
+ usr/src/lib/libc/port/regex/tre-match-parallel.c
+ usr/src/lib/libc/port/regex/tre-match-utils.h
+ usr/src/lib/libc/port/regex/tre-mem.c
+ usr/src/lib/libc/port/regex/tre-mem.h
+ usr/src/lib/libc/port/regex/tre-parse.c
+ usr/src/lib/libc/port/regex/tre-parse.h
+ usr/src/lib/libc/port/regex/tre-stack.c
+ usr/src/lib/libc/port/regex/tre-stack.h
+ usr/src/lib/libc/port/regex/tre.h
  usr/src/lib/gss_mechs/mech_krb5/crypto/aes/aes_s2k.c
  usr/src/lib/gss_mechs/mech_krb5/crypto/cksumtype_to_string.c
  usr/src/lib/gss_mechs/mech_krb5/crypto/coll_proof_cksum.c
  usr/src/lib/gss_mechs/mech_krb5/crypto/crc32/crc.c
  usr/src/lib/gss_mechs/mech_krb5/crypto/des/afsstring2key.c