8849 libresolv2: remove rcsid
Reviewed by: Yuri Pankov <yuripv@gmx.com>
Reviewed by: Gary Mills <gary_mills@fastmail.fm>
Approved by: Dan McDonald <danmcd@joyent.com>

6289479 libresolv2 clean up and alignment with libbind.6.0

6346636 expunge readdir_r uses from Solaris
6346809 S_IFxxx is not a bitmask but our programmers don't know

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