getoptlong.rb improvements

The exception "AmbiguousOption" is misspelled, "quit mode" should read
"quiet mode", and the ambiguous option exception's detail string would be a
lot more useful if it actually said what options the ambiguity was between.

  --elliott

Index: lib/getoptlong.rb
===================================================================
RCS file: /src/ruby/lib/getoptlong.rb,v
retrieving revision 1.10
diff -u -r1.10 getoptlong.rb
--- lib/getoptlong.rb   2 Jun 2003 04:49:46 -0000       1.10
+++ lib/getoptlong.rb   3 Mar 2004 23:24:33 -0000
@@ -34,7 +34,7 @@
   # Error types.
   #
   class Error  < StandardError; end
-  class AmbigousOption   < Error; end
+  class AmbiguousOption   < Error; end
   class NeedlessArgument < Error; end
   class MissingArgument  < Error; end
   class InvalidOption    < Error; end
@@ -208,7 +208,7 @@
   end
 
   #
-  # Set/Unset `quit' mode.
+  # Set/Unset `quiet' mode.
   #
   attr_writer :quiet
 
@@ -352,15 +352,16 @@
        # It may be an abbreviated.
        #
        match_count = 0
+    matches = []
        @canonical_names.each_key do |key|
          if key.index(pattern) == 0
            option_name = key
-           match_count += 1
+        matches << key
          end
        end
-       if 2 <= match_count
-         set_error(AmbigousOption, "option `#{argument}' is ambiguous")
-       elsif match_count == 0
+       if 2 <= matches.length()
+         set_error(AmbiguousOption, "option `#{argument}' is ambiguous
between #{matches.join(', ')}")
+       elsif matches.length() == 0
          set_error(InvalidOption, "unrecognized option `#{argument}'")
        end
       end


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