fix: support flags output for ANSI

See 2372ad1 for more details

Author: kylef

Sources/Commander/ArgumentDescription.swift

@@ -452,7 +452,13 @@ class Help : Error, ANSIConvertible, CustomStringConvertible {
     if !options.isEmpty {
       output.append("Options:")
       for option in options {
-        var line = "    \(ANSI.blue)--\(option.name)\(ANSI.reset)"
+        var line = "    "
+
+        if let flag = option.flag {
+          line += "\(ANSI.blue)-\(flag)\(ANSI.reset), "
+        }
+
+        line += "\(ANSI.blue)--\(option.name)\(ANSI.reset)"
 
         if let `default` = option.default {
           line += " [default: \(`default`)]"

Tests/CommanderTests/ArgumentDescriptionSpec.swift

@@ -83,6 +83,14 @@ let testArgumentDescription: ((ContextType) -> Void) = {
       try expect(help.description) == "Options:\n    -v, --verbose [default: false] - enable verbose mode"
     }
 
+    $0.it("shows option flag with ansi") {
+      let help = Help([
+        BoxedArgumentDescriptor(value: Flag("verbose", flag: "v", description: "enable verbose mode")),
+      ])
+
+      try expect(help.ansiDescription) == "Options:\n    \(ANSI.blue)-v\(ANSI.reset), \(ANSI.blue)--verbose\(ANSI.reset) [default: false] - enable verbose mode"
+    }
+
     $0.it("shows default for custom types conforming to CustomStringConvertible") {
       enum Direction: String, CustomStringConvertible, ArgumentConvertible {
         case north