[flex/2.4] Add missing .env.dev file (#1367)

Author: nicolas-grekas

symfony/flex/2.4/.env

@@ -0,0 +1,15 @@
+# In all environments, the following files are loaded if they exist,
+# the latter taking precedence over the former:
+#
+#  * .env                contains default values for the environment variables needed by the app
+#  * .env.local          uncommitted file with local overrides
+#  * .env.$APP_ENV       committed environment-specific defaults
+#  * .env.$APP_ENV.local uncommitted environment-specific overrides
+#
+# Real environment variables win over .env files.
+#
+# DO NOT DEFINE PRODUCTION SECRETS IN THIS FILE NOR IN ANY OTHER COMMITTED FILES.
+# https://symfony.com/doc/current/configuration/secrets.html
+#
+# Run "composer dump-env prod" to compile .env files for production use (requires symfony/flex >=1.2).
+# https://symfony.com/doc/current/best_practices.html#use-environment-variables-for-infrastructure-configuration

symfony/flex/2.4/.env.dev

@@ -0,0 +1,6 @@
+{
+    "copy-from-recipe": {
+        ".env": ".env",
+        ".env.dev": ".env.dev"
+    }
+}