Allows SMF method to override Apache binary to start and thus select if

we want prefork/worker Apache MPM.

--- support/apachectl.in Tue Jul 11 20:38:44 2006

+++ support/apachectl.in Tue May 14 07:40:03 2013

@@ -41,7 +41,7 @@

# -------------------- --------------------

#

# the path to your httpd binary, including options if necessary

-HTTPD='@exp_sbindir@/@progname@'

+HTTPD=${HTTPD:-@exp_sbindir@/@progname@}

#

# pick up any necessary environment variables

if test -f @exp_sbindir@/envvars; then