Remove parameters for read

The -n and -s parameters does not exist on BSD. Since they don't make any
difference, they should be removed
Fix #9 - Replace expr with grep for matching
Merge pull request #13 from lollek/read-parameters

Remove parameters for read
Merge branch 'replace-expr-with-grep' of https://github.com/lollek/hashbang.sh into lollek-replace-expr-with-grep
Merge branch 'lollek-replace-expr-with-grep'