Description of problem:
There is a configuration mismatch for texttops filter:
in /usr/share/cups/charsets/* the fonts selection lines read
   ... Courier Courier-Bold Courier-Italic Courier-BoldItalic
or ... Courier Courier-Bold Courier-Italic Courier-Bold-Italic (utf-8)
instead of 
   ... Courier Courier-Bold Courier-Oblique Courier-BoldOblique
as these are the font names in /usr/share/cups/fonts .

This affects printing files (where mime.convs/local.convs uses texttops) with 
the option -o prettyprint .

Version-Release number of selected component (if applicable):
cups-1.2.12-6

How reproducible:
Very.

Steps to Reproduce:
1. LANG=en_US lp -d FC6_HPTasht -o prettyprint -o document-format=application/x-
shell cups_selective_rm.sh
or
2. lp -d FC6_HPTasht -o prettyprint -o document-format=application/x-shell 
cups_selective_rm.sh
  
Actual results:
Printout does not have comments italicized but has keywords in bold.

Expected results:
Printout to have comments italicized.

Additional info:
1. Doing the suggested change solves the problem.
2. The ``-o document-format=application/x-shell'' is need (but shouldn't be). 
I'll file a seperate bug.