Merge pull request #200 from Liamraystanley/patch-1

fix spelling
diff --git a/flags.go b/flags.go
index 9c815e0..8144f4f 100644
--- a/flags.go
+++ b/flags.go
@@ -109,7 +109,7 @@
     value-name:     the name of the argument value (to be shown in the help)
     choice:         limits the values for an option to a set of values.
-                    This tag can be specified mltiple times (optional)
+                    This tag can be specified multiple times (optional)
     hidden:         the option is not visible in the help or man page.
     base: a base (radix) used to convert strings to integer values, the