improved mp3/flac filter. use pstotext directly

src/filters/rclid3

@@ -1,5 +1,5 @@
 #!/bin/sh
-# @(#$Id: rclid3,v 1.3 2008-10-08 08:27:34 dockes Exp $  (C) 2004 J.F.Dockes
+# @(#$Id: rclid3,v 1.4 2008-10-09 09:21:38 dockes Exp $  (C) 2004 J.F.Dockes
 #================================================================
 # rclid3
 # Handle audio files for recoll. This uses id3info to extract tags
@@ -84,8 +84,6 @@ echo '<html><head>'
 #echo '<title>' "$title" '</title>'
 echo '<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">'
 
-nocaptionexp='s/===.*://'
-
 if test X$RECOLL_FILTER_FORPREVIEW = Xyes ; then
 echo '</head><body><pre>'
 id3info "$infile" | \
@@ -104,6 +102,7 @@ id3info "$infile" | awk -F: \
    for (i = 2; i <=NF; i++) {
      value = value " " $i
    }
+   sub("^ +", "", value)
    sub("&", "&amp;", value)
    sub("\"", "&quot;", value)
    sub("<", "&lt;", value)