manpages: italicize nongit command names (if they are in teletype font)

Some manual pages use teletype font to set command names. We
change them to use italics, instead.  This creates a visual
distinction between names of commands and command lines that
can be typed at the command line. It is also more consistent
with other man pages outside Git.

In this patch, the commands named are non-git commands like bash.

Signed-off-by: Jonathan Nieder <jrnieder@uchicago.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/Documentation/git-cvsserver.txt b/Documentation/git-cvsserver.txt
index 1804701..2aacdc6 100644
--- a/Documentation/git-cvsserver.txt
+++ b/Documentation/git-cvsserver.txt
@@ -115,7 +115,7 @@
 you don't need to worry about always setting the correct environment
 variable.  SSH users restricted to 'git-shell' don't need to override the default
 with CVS_SERVER (and shouldn't) as 'git-shell' understands `cvs` to mean
-'git-cvsserver' and pretends that the other end runs the real `cvs` better.
+'git-cvsserver' and pretends that the other end runs the real 'cvs' better.
 --
 2. For each repo that you want accessible from CVS you need to edit config in
    the repo and add the following section.
@@ -328,7 +328,7 @@
 the correct '-k' mode will be guessed based on the contents of
 the file.
 
-For best consistency with `cvs`, it is probably best to override the
+For best consistency with 'cvs', it is probably best to override the
 defaults by setting `gitcvs.usecrlfattr` to true,
 and `gitcvs.allbinary` to "guess".