Fix require_exact to work with options defined as --[no]-something

Author: fatkodima

lib/optparse.rb

@@ -1048,7 +1048,7 @@ def compsys(to, name = File.basename($0)) # :nodoc:
   # Shows option summary.
   #
   Officious['help'] = proc do |parser|
-    Switch::NoArgument.new do |arg|
+    Switch::NoArgument.new(nil, nil, ["-h"], ["--help"]) do |arg|
       puts parser.help
       exit
     end
@@ -1473,7 +1473,7 @@ def make_switch(opts, block = nil)
           default_style = default_style.guess(arg = a)
           default_pattern, conv = search(:atype, o) unless default_pattern
         end
-        ldesc << "--[no-]#{q}"
+        ldesc << "--#{q}" << "--no-#{q}"
         (o = q.downcase).tr!('_', '-')
         long << o
         not_pattern, not_conv = search(:atype, FalseClass) unless not_style
@@ -1649,7 +1649,7 @@ def parse_in_order(argv = default_argv, setter = nil, &nonopt)  # :nodoc:
           opt.tr!('_', '-')
           begin
             sw, = complete(:long, opt, true)
-            if require_exact && !sw.long.include?(arg)
+            if require_exact && !sw.long.include?("--#{opt}")
               throw :terminate, arg unless raise_unknown
               raise InvalidOption, arg
             end

test/optparse/test_optparse.rb

@@ -88,9 +88,9 @@ def test_require_exact
     end
 
     @opt.require_exact = true
-    %w(--zrs -F -Ffoo).each do |arg|
+    [%w(--zrs foo), %w(--zrs=foo), %w(-F foo), %w(-Ffoo)].each do |args|
       result = {}
-      @opt.parse([arg, 'foo'], into: result)
+      @opt.parse(args, into: result)
       assert_equal({zrs: 'foo'}, result)
     end
 
@@ -99,6 +99,14 @@ def test_require_exact
     assert_raise(OptionParser::InvalidOption) {@opt.parse(%w(-zrs foo))}
     assert_raise(OptionParser::InvalidOption) {@opt.parse(%w(-zr foo))}
     assert_raise(OptionParser::InvalidOption) {@opt.parse(%w(-z foo))}
+
+    @opt.def_option('-f', '--[no-]foo', 'foo') {|arg| @foo = arg}
+    @opt.parse(%w[-f])
+    assert_equal(true, @foo)
+    @opt.parse(%w[--foo])
+    assert_equal(true, @foo)
+    @opt.parse(%w[--no-foo])
+    assert_equal(false, @foo)
   end
 
   def test_raise_unknown