Update ifhp script to something working on 4.X and 5.X. This example is

now similar to the one installed by default in
/usr/share/examples/printing/ifhp

PR:		docs/65766
Submitted by:	Simon Barner <barner@in.tum.de>

en_US.ISO8859-1/books/handbook/printing/chapter.sgml

@@ -1936,10 +1936,11 @@ fi</programlisting>
         <programlisting>#!/bin/sh
 #
 #  ifhp - Print Ghostscript-simulated PostScript on a DeskJet 500
-#  Installed in /usr/local/libexec/ifhp
+#  Installed in /usr/share/examples/printing/ifhp
 
 #
-#  Treat LF as CR+LF:
+#  Treat LF as CR+LF (to avoid the "staircase effect" on HP/PCL
+#  printers):
 #
 printf "\033&amp;k2G" || exit 2
 
@@ -1953,17 +1954,8 @@ if [ "$first_two_chars" = "%!" ]; then
     #
     #  It is PostScript; use Ghostscript to scan-convert and print it.
     #
-    #  Note that PostScript files are actually interpreted programs,
-    #  and those programs are allowed to write to stdout, which will
-    #  mess up the printed output.  So, we redirect stdout to stderr
-    #  and then make descriptor 3 go to stdout, and have Ghostscript
-    #  write its output there.  Exercise for the clever reader:
-    #  capture the stderr output from Ghostscript and mail it back to
-    #  the user originating the print job.
-    #
-    exec 3&gt;&amp;1 1&gt;&amp;2
     /usr/local/bin/gs -dSAFER -dNOPAUSE -q -sDEVICE=djet500 \
-        -sOutputFile=/dev/fd/3 - &amp;&amp; exit 0
+      -sOutputFile=- - &amp;&amp; exit 0
 else
     #
     #  Plain text or HP/PCL, so just print it directly; print a form feed