In shell scripts run during the build, add a SED variable, defaulting
to "sed". SED=${TOOL_SED:Q} should be passed in the environment to
override this.

In shell scripts invoked during a build, and in crunchgen, use ${AWK}
instead of plain "awk". The Makefiles that invoke these scripts
or programs will pass AWK=${HOST_AWK:Q}.

RCS ID Police

branches: 1.1.1;
Initial revision

import pdksh 5.2.8