ruby(1) manpage shows extraneous space for -F option
The manual page for the ruby executable describes the -F option as:
-F pattern Specifies input field separator ($;).
This (and the corresponding item in the synopsis) should be
-Fpattern, with no space. The output of
ruby --help correctly omits the space.
Demonstration of Ruby's actual behavior:
$ echo 'axb' | ruby -Fx -lane 'p $F' ["a", "b"] $ echo 'axb' | ruby -F x -lane 'p $F' ruby: No such file or directory -- x (LoadError)
I have not reproduced this with a build of the latest ruby from svn, but trunk/man/ruby.1 has not been changed since before my version was built.