Dear Maintainer,

As of Go 1.17, the ';' character is not accepted as a valid separator
by net/http or net/url. This causes some of the tests in this package
to fail during the build. Changing the tests cases that use ';' to use
'&' instead fixes the build failures


In Ubuntu, the attached patch was applied to achieve the following:

Build golang-github-ajg-form with Go 1.17

  * Change semicolons to ampersands to enable building with go 1.17
    (LP: #1942131)


Thanks for considering the patch.