From 9990f73845d76106063536d7cd630ac15cb4a065 Mon Sep 17 00:00:00 2001
From: linus-sherrill <linus-sherrill@users.noreply.github.com>
Date: Sun, 13 Jan 2019 16:46:41 -0500
Subject: [PATCH] Remove empty string initializer. (#159)

The empty string caused the vector to have one element which caused
the test at line 2041 to always fail.
---
 include/cxxopts.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/cxxopts.hpp b/include/cxxopts.hpp
index 81ac11c..45fea09 100644
--- a/include/cxxopts.hpp
+++ b/include/cxxopts.hpp
@@ -1281,7 +1281,7 @@ namespace cxxopts
     }
 
     std::string
-    help(const std::vector<std::string>& groups = {""}) const;
+    help(const std::vector<std::string>& groups = {}) const;
 
     const std::vector<std::string>
     groups() const;