sendmail: fixed setmailer.sh to use an absolute path within the generated sendmail wrapper script

Note:

Without this sendmail will spit out following warning:
--------------------------------------------------------------------------
sendmail[11340]: daemon invoked without full pathname; kill -1 won't work
--------------------------------------------------------------------------

mail/sendmail/setmailer.sh

@@ -3,7 +3,7 @@
 # This copyright note is auto-generated by ./scripts/Create-CopyPatch.
 #
 # Filename: package/.../sendmail/setmailer.sh
-# Copyright (C) 2007 The OpenSDE Project
+# Copyright (C) 2007 - 2011 The OpenSDE Project
 # Copyright (C) 2004 - 2006 The T2 SDE Project
 #
 # More information can be found in the files COPYING and README.
@@ -17,7 +17,7 @@
 prefix=$( cd ${0%/*}/..; pwd -P )
 for x in sendmail mailq newaliases; do
 	echo "$0: Re-creating /usr/bin/$x -> ${x}_@mailer@ ..."
-	echo -e "#!/bin/sh\nexec -a $x ${x}_@mailer@ \"\$@\"" > $prefix/bin/$x
+	echo -e "#!/bin/sh\nexec -a $prefix/sbin/$x ${x}_@mailer@ \"\$@\"" > $prefix/bin/$x
 	chmod +x $prefix/bin/$x
 done