update list method instances to work for php5

Author: themsaid

src/Commands/ShowCommand.php

@@ -148,6 +148,7 @@ private function parseKey()
         try {
             list($this->file, $this->key) = explode('.', $this->argument('key'));
         } catch (\ErrorException $e) {
+            $this->file = $this->argument('key');
             // If explosion resulted 1 array item then it's the file, we
             // leave the key as null.
         }

src/Commands/TransCommand.php

@@ -95,7 +95,12 @@ public function handle()
     private function parseKey()
     {
         try {
-            list($this->fileName, $this->key, $this->languageKey) = explode('.', $this->argument('key'));
+            $parts = explode('.', $this->argument('key'));
+
+            $this->fileName = $parts[0];
+            $this->key = $parts[1];
+            $this->languageKey = $parts[2];
+
         } catch (\ErrorException $e) {
             if (! $this->key) {
                 $this->error('Could not recognize the key you want to translate.');