enable lp(1)'s generic postprocessor to handle
microsoft office documents with help of doc2ps(1).

Reference: /n/sources/patch/applied/lp-doc2ps
Date: Thu May 13 14:04:20 CES 2010
Signed-off-by: yarikos@gmail.com

--- /sys/lib/lp/process/generic	Thu May 13 14:02:29 2010
+++ /sys/lib/lp/process/generic	Thu May 13 14:02:26 2010
@@ -178,6 +178,17 @@
 	case *
 		echo Unrecognized class of line printer for $LPDEST >[1=2]
 	}
+case microsoft # office document
+	switch ($LPCLASS) {
+	case *post*
+		doc2ps $temp | $proc/post
+	case *gs!*
+		doc2ps $temp | $proc/post  | $proc/gspipe
+	case *gsijs!*
+		doc2ps $temp | $proc/post | $proc/gspipeijs
+	case *
+		echo $type(2) file is improper for $LPDEST >[1=2]
+	}
 case empty
 	echo file is empty >[1=2]
 case cannot