Correct typo: optional args cannot be separate

git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/cli/branches/avalon-implementation@539900 13f79535-47bb-0310-9956-ffa450edef68

Author: sebbASF

src/java/org/apache/commons/cli/avalon/package.html

@@ -143,9 +143,9 @@ <h3>Parsing Rules</h3>
                 argument "bc" while "-a bc" is an option 'a' with no argument, followed by
                 the text "bc". </p>
                 <p>It is also possible to place an '=' sign between the option
-                and it's argument. So if we assume that a is an option that 
-                requires an argument then the following are all equivalent; 
-                "-a=bc", "-a bc" "-abc".
+                and its argument. So if we assume that a is an option that 
+                requires an argument then the following are equivalent; 
+                "-a=bc" and "-abc".
                 </p>
                 <p>
                 In the case of a long option with an optional argument, the '=' sign is required.