use httpd's (AC_PROG_AWK) choice of awk instead of choosing one here
use httpd's (AC_PROG_AWK) choice of awk instead of choosing one here

/usr/xpg4/bin/awk isn't part of httpd's selection, but it isn't 
needed with current awk language use

allow override with AWK envvar

hint by wrowe, research by rjung

PR: 48067


git-svn-id: 244fd0a71b5b35931765a3ae1f99e3319f3fb8ab@836253 13f79535-47bb-0310-9956-ffa450edef68

kaigai/mod_fcgid