update php sample

Author: wing328

samples/client/petstore/php/SwaggerClient-php/composer.json

@@ -1,32 +1,32 @@
 {
-"name": "SwaggerClient/SwaggerClient-php",
-"description": "",
-"keywords": [
-"swagger",
-"php",
-"sdk",
-"api"
-],
-"homepage": "http://swagger.io",
-"license": "Apache v2",
-"authors": [
-{
-"name": "Swagger and contributors",
-"homepage": "https://github.com/swagger-api/swagger-codegen"
-}
-],
-"require": {
-"php": ">=5.3.3",
-"ext-curl": "*",
-"ext-json": "*",
-"ext-mbstring": "*"
-},
-"require-dev": {
-"phpunit/phpunit": "~4.0",
-"satooshi/php-coveralls": "~0.6.1",
-"squizlabs/php_codesniffer": "~2.0"
-},
-"autoload": {
-"psr-4": { "SwaggerClient\\" : "lib/" }
-}
+  "name": "SwaggerClient/SwaggerClient-php",
+  "description": "",
+  "keywords": [
+    "swagger",
+    "php",
+    "sdk",
+    "api"
+  ],
+  "homepage": "http://swagger.io",
+  "license": "Apache v2",
+  "authors": [
+    {
+      "name": "Swagger and contributors",
+      "homepage": "https://github.com/swagger-api/swagger-codegen"
+    }
+  ],
+  "require": {
+    "php": ">=5.3.3",
+    "ext-curl": "*",
+    "ext-json": "*",
+    "ext-mbstring": "*"
+  },
+  "require-dev": {
+    "phpunit/phpunit": "~4.0",
+    "satooshi/php-coveralls": "~0.6.1",
+    "squizlabs/php_codesniffer": "~2.0"
+  },
+  "autoload": {
+    "psr-4": { "SwaggerClient\\" : "lib/" }
+  }
 }