texlive-latex-upquote 51265 Show "realistic" quotes in verbatim

Typewriter-style fonts are best for program listings, but Computer Modern Typewriter prints ` and ' as bent opening and closing single quotes. Other fonts, and most programming languages, print ` as a grave accent and ' upright; ' is used both to open and to close quoted strings. The package switches the typewriter font to Computer Modern Typewriter in OT1 encoding, and modifies the behaviour of verbatim, verbatim*, \verb, and \verb* to print in the expected way. It does this regardless of other fonts or encodings in use, so long as the package is loaded after the other fonts were. The package does not affect \tt, \texttt, etc.