[Dotenv] fix typos

Author: nicolas-grekas

CHANGELOG.md

@@ -4,7 +4,7 @@ CHANGELOG
 4.3.0
 -----
 
- * deprecated use of `putenv()` but default. This feature will be opted-in with a constructor argument to `Dotenv`. 
+ * deprecated use of `putenv()` by default. This feature will be opted-in with a constructor argument to `Dotenv`
 
 4.2.0
 -----

Dotenv.php

@@ -38,13 +38,13 @@ final class Dotenv
     private $usePutenv = true;
 
     /**
-     * @var bool If we should use `putenv()` to define environment variables
-     *           or not. Since Symfony 5.0 the default value is false
-     *           because `putenv()` is not thread safe.
+     * @var bool If `putenv()` should be used to define environment variables or not.
+     *           Beware that `putenv()` is not thread safe and this setting will default
+     *           to `false` in Symfony 5.0.
      */
     public function __construct(bool $usePutenv = true)
     {
-        if (0 === \func_num_args()) {
+        if (!\func_num_args()) {
             @trigger_error(sprintf('The default value of "$usePutenv" argument of "%s\'s constructor will change from "true" to "false" in Symfony 5.0, you should define its value explicitly.', __METHOD__), E_USER_DEPRECATED);
         }
 

README.md

@@ -2,7 +2,7 @@ Dotenv Component
 ================
 
 Symfony Dotenv parses `.env` files to make environment variables stored in them
-accessible via `$_ENV`, `$_SERVER` and optionally `getenv()`.
+accessible via `$_SERVER`, `$_ENV` and optionally `getenv()`.
 
 Resources
 ---------