Anthony Bryan's letter=>symbol fixes

  4.2 Why do I get problems when I use & or % in the URL?

  In general unix shells, the & letter is treated specially and when used, it

  In general unix shells, the & symbol is treated specially and when used, it

  runs the specified command in the background. To safely send the & as a part

  of a URL, you should quote the entire URL by using single (') or double (")

  quotes around it. Similar problems can also occur on some shells with other

  characters, including ?*!$~(){}<>\|;`.  When in doubt, quote the URL.

  An example that would invoke a remote CGI that uses &-letters could be:

  An example that would invoke a remote CGI that uses &-symbols could be:

     curl 'http://www.altavista.com/cgi-bin/query?text=yes&q=curl'

  In Windows, the standard DOS shell treats the %-letter specially and you

  need to use TWO %-letters for each single one you want to use in the URL.

  In Windows, the standard DOS shell treats the %-symbol specially and you

  need to use TWO %-symbols for each single one you want to use in the URL.

  Also note that if you want the literal %-letter to be part of the data you

  Also note that if you want the literal %-symbol to be part of the data you

  pass in a POST using -d/--data you must encode it as '%25' (which then also

  needs the %-letter doubled on Windows machines).

  needs the %-symbol doubled on Windows machines).

  4.3 How can I use {, }, [ or ] to specify multiple URLs?

  can also specify the long options without the dashes to make it more

  readable. You can separate the options and the parameter with spaces, or

  with = or :. Comments can be used within the file. If the first letter on a

  line is a '#'-letter the rest of the line is treated as a comment.

  line is a '#'-symbol the rest of the line is treated as a comment.

  If you want the parameter to contain spaces, you must enclose the entire

  parameter within double quotes ("). Within those quotes, you specify a