Removes trailing whitespaces in AuthSamples. (#85)

Author: XiangtianDai

AuthSamples/ApiTests/AuthCredentialsTemplate.h

@@ -33,14 +33,14 @@ ID, saved for continuous tests.
 The name of the test user for Google SignIn.
 
 $KFACEBOOK_APP_ID
-FACEBOOK_APP_ID is the developer's Facebook app's ID, to be used to test the 
-'Signing in with Facebook' feature of Firebase Auth. Follow the instructions 
-on the Facebook developer site: https://developers.facebook.com/docs/apps/register 
+FACEBOOK_APP_ID is the developer's Facebook app's ID, to be used to test the
+'Signing in with Facebook' feature of Firebase Auth. Follow the instructions
+on the Facebook developer site: https://developers.facebook.com/docs/apps/register
 to obtain such an id.
 
 $KFACEBOOK_APP_ACCESS_TOKEN
 Once you have an Facebook App Id, click on dashboard from your app you can see
-both your App ID and the App Secret. Once you have both of these generate the 
+both your App ID and the App Secret. Once you have both of these generate the
 access token using the step 13 of https://smashballoon.com/custom-facebook-feed/access-token/
 Follow the same link for comprehensive information on how to get the access token.
 

AuthSamples/Sample/AuthCredentialsTemplate.h

@@ -23,9 +23,9 @@ and copy it to AuthCredentials.h file
 You will need to replace the following values:
 
 $KFACEBOOK_APP_ID
-FACEBOOK_APP_ID is the developer's Facebook app's ID, to be used to test the 
-'Signing in with Facebook' feature of Firebase Auth. Follow the instructions 
-on the Facebook developer site: https://developers.facebook.com/docs/apps/register 
+FACEBOOK_APP_ID is the developer's Facebook app's ID, to be used to test the
+'Signing in with Facebook' feature of Firebase Auth. Follow the instructions
+on the Facebook developer site: https://developers.facebook.com/docs/apps/register
 to obtain such an id.
 */
 

AuthSamples/SwiftSample/AuthCredentialsTemplate.swift

@@ -26,9 +26,9 @@
  Get the value of the CLIENT_ID key in the GoogleService-Info.plist file.
 
  $KFACEBOOK_APP_ID
- FACEBOOK_APP_ID is the developer's Facebook app's ID, to be used to test the 
- 'Signing in with Facebook' feature of Firebase Auth. Follow the instructions 
- on the Facebook developer site: https://developers.facebook.com/docs/apps/register 
+ FACEBOOK_APP_ID is the developer's Facebook app's ID, to be used to test the
+ 'Signing in with Facebook' feature of Firebase Auth. Follow the instructions
+ on the Facebook developer site: https://developers.facebook.com/docs/apps/register
  to obtain the id
 
  */

AuthSamples/SwiftSample/InfoTemplate.plist

@@ -1,6 +1,6 @@
 <!--
 	For this to be a valid plist file replace the following
-	$REVERSE_CLIENT_ID: 
+	$REVERSE_CLIENT_ID:
 		Value of REVERSED_CLIENT_ID key in the GoogleService-Info.plist file.
 -->
 <?xml version="1.0" encoding="UTF-8"?>