Update USING_WRAP to match current practices.

docs/USING_WRAP

@@ -32,7 +32,7 @@ the following import line:
 
 This will allow you to access the wrap command (and it allows you to do it
 without the commands prefix. Note that this line is added to the imports of
-plugin templates generated by the supybot-newplugin script.
+plugin templates generated by the supybot-plugin-create script.
 
 Let's write a quickie command that uses wrap to get a feel for how it makes our
 lives better. Let's write a command that repeats a string of text a given
@@ -41,7 +41,7 @@ Not a very useful command, but it will serve our purpose just fine. Here's how
 it would be done without wrap:
 
    def repeat(self, irc, msg, args):
-       """<num> <text> 
+       """<num> <text>
 
        Repeats <text> <num> times.
        """
@@ -50,10 +50,9 @@ it would be done without wrap:
            num = int(num)
        except ValueError:
            raise callbacks.ArgumentError
-           return
        irc.reply(num * text)
 
-Note that all of the argument validation and parsing takes up 6 of the 7 lines
+Note that all of the argument validation and parsing takes up 5 of the 6 lines
 (and you should have seen it before we had privmsg.getArgs!). Now, here's what
 our command will look like with wrap applied:
 
@@ -194,7 +193,7 @@ optional, the default value is shown.
 
 "now"
     Simply returns the current timestamp as an arg, does not reference or
-    modify the argument list. 
+    modify the argument list.
 
 "url"
     Checks for a valid URL.