--- a/cpp/join/join.hpp	Wed Aug 01 14:08:40 2018 +0200
+++ b/cpp/join/join.hpp	Thu Oct 04 21:17:55 2018 +0200
@@ -36,16 +36,16 @@
 template <typename InputIt, typename DelimType = char>
 auto join(InputIt first, InputIt last, DelimType delim = ':') -> std::string
 {
-    std::ostringstream oss;
+	std::ostringstream oss;
 
-    if (first != last) {
-        oss << *first;
+	if (first != last) {
+		oss << *first;
 
-        while (++first != last)
-            oss << delim << *first;
-    }
+		while (++first != last)
+			oss << delim << *first;
+	}
 
-    return oss.str();
+	return oss.str();
 }
 
 /**
@@ -58,5 +58,5 @@
 template <typename T, typename DelimType = char>
 auto join(std::initializer_list<T> list, DelimType delim = ':') -> std::string
 {
-    return join(list.begin(), list.end(), delim);
+	return join(list.begin(), list.end(), delim);
 }