🎨 cleanup after #496

Ran “make pretty” and added a note to the README file.

README.md

@@ -828,7 +828,7 @@ I deeply appreciate the help of the following people.
 - [rswanson-ihi](https://github.com/rswanson-ihi) noted a typo in the README.
 - [Mihai Stan](https://github.com/stanmihai4) fixed a bug in the comparison with `nullptr`s.
 - [Tushar Maheshwari](https://github.com/tusharpm) added [cotire](https://github.com/sakra/cotire) support to speed up the compilation.
-- [TedLyngmo](https://github.com/TedLyngmo) noted a typo in the README.
+- [TedLyngmo](https://github.com/TedLyngmo) noted a typo in the README and fixed some `-Weffc++` warnings.
 
 Thanks a lot for helping out! Please [let me know](mailto:mail@nlohmann.me) if I forgot someone.
 

test/src/unit-udt.cpp

@@ -49,19 +49,19 @@ enum class country
 struct age
 {
     int m_val;
-    age(int rhs=0) : m_val(rhs) {}
+    age(int rhs = 0) : m_val(rhs) {}
 };
 
 struct name
 {
     std::string m_val;
-    name(const std::string rhs="") : m_val(rhs) {}
+    name(const std::string rhs = "") : m_val(rhs) {}
 };
 
 struct address
 {
     std::string m_val;
-    address(const std::string rhs="") : m_val(rhs) {}
+    address(const std::string rhs = "") : m_val(rhs) {}
 };
 
 struct person
@@ -69,7 +69,7 @@ struct person
     age m_age;
     name m_name;
     country m_country;
-    person() : m_age(),m_name(),m_country() {}
+    person() : m_age(), m_name(), m_country() {}
     person(const age& a, const name& n, const country& c) : m_age(a), m_name(n), m_country(c) {}
 };