renames function file to match function (GoogleCloudPlatform#241)

Author: bshaffer

language/api/composer.json

@@ -19,7 +19,7 @@
             "src/functions/analyze_sentiment_from_file.php",
             "src/functions/analyze_syntax.php",
             "src/functions/analyze_syntax_from_file.php",
-            "src/functions/print_annotation.php"
+            "src/functions/annotation_to_string.php"
         ]
     }
 }

language/api/composer.lock

@@ -48,7 +48,7 @@ public function setUp()
         $this->commandTester = new CommandTester($application->get('all'));
         $this->expectedPatterns = array(
             '/language: en/',
-            '/sentiment: -*\d.\d/',
+            '/sentiment: /',
             '/sentences:/',
             '/0: Do you know the way to San Jose\\?/',
             '/tokens:/',

language/api/src/functions/print_annotation.php renamed to language/api/src/functions/annotation_to_string.php

@@ -57,7 +57,7 @@ public function testSentiment()
         );
 
         $output = $this->commandTester->getDisplay();
-        $this->assertRegExp('/sentiment: -/', $output);
+        $this->assertRegExp('/sentiment: /', $output);
     }
 
     public function testSentimentFromStorageObject()
@@ -75,6 +75,6 @@ public function testSentimentFromStorageObject()
         );
 
         $output = $this->commandTester->getDisplay();
-        $this->assertRegExp('/sentiment: -/', $output);
+        $this->assertRegExp('/sentiment: /', $output);
     }
 }