Merge pull request #138 from carusogabriel/null-coalesce-operator

Use Null Coalesce Operator

Author: Tomáš Votruba

src/GitWrapper/GitCommand.php

@@ -272,7 +272,7 @@ public function setFlag($option)
      */
     public function getOption($option, $default = null)
     {
-        return (isset($this->options[$option])) ? $this->options[$option] : $default;
+        return $this->options[$option] ?? $default;
     }
 
     /**

src/GitWrapper/GitWrapper.php

@@ -180,7 +180,7 @@ public function unsetEnvVar($var)
      */
     public function getEnvVar($var, $default = null)
     {
-        return isset($this->env[$var]) ? $this->env[$var] : $default;
+        return $this->env[$var] ?? $default;
     }
 
     /**