Remove "--" from the unprocessed arguments

The double dash is a valid (special) option for Slop, so like the rest
of the options successfully processed, should be removed.

1 files changed, 6 insertions, 1 deletions

diff --git a/lib/slop/parser.rb b/lib/slop/parser.rb
index c12e2f5..246da9f 100644
--- a/lib/slop/parser.rb
+++ b/lib/slop/parser.rb
@@ -44,8 +44,13 @@ module Slop
       @arguments = strings.dup
 
       pairs.each do |flag, arg|
+        break if !flag
+
         # ignore everything after '--', flag or not
-        break if !flag || flag == '--'
+        if flag == '--'
+          arguments.delete(flag)
+          break
+        end
 
         # support `foo=bar`
         if flag.include?("=")