[clug] More in the list of things that someone should have told me long ago.

[Steve Barnes]

> Thanks Andrew (but wtf is -g ?)

"If -g is passed, attempt to guess the lexer from the file contents, or 
pass through as plain text if this fails (this can work for stdin)."

https://bitbucket.org/birkenfeld/pygments-main/issue/962/pygmentize-not-reading-from-stdin