Upgrade of net/ngrep to version 1.42

	Changes for v1.42
        o rewrote the entire configure.in/config.h.in to autoconf 2.57
          to be more consistent with normal autoconf'd programs.
          corrects bugs around packaging impediments and typos.

        o improved privilege dropping code and added more options to
          configure to govern its behaviour

        o added flag to turn off privilege revocation logic

        o added multiline match as default and ability to enforce
          previous default single-line match (bugfix + feature)

        o added ability to read bpf filter expression from file

        o added ability to force the column width to a certain size

        o added two new output modes: ``byline'', whose output
          respects embedded carriage returns (useful for http dumps),
          and ``none'', which prints out each dump as a single line no
          matter what.

        o added ability to specify alternate nonprintable character
          (default is ``.'').

        o made ``-q'' effects more consistent and usable for scenarios
          where ``-I'' and/or ``-O'' are being employed

        o documentation updated

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