fix bug with endstream appearing without line break

src/UglyToad.PdfPig.Tests/Tokenization/Scanner/PdfTokenScannerTests.cs

@@ -3,9 +3,11 @@
     using System;
     using System.Collections.Generic;
     using System.Text;
+    using IO;
     using PdfPig.ContentStream;
     using PdfPig.Tokenization.Scanner;
     using PdfPig.Tokenization.Tokens;
+    using PdfPig.Util;
     using Xunit;
 
     public class PdfTokenScannerTests
@@ -294,8 +296,9 @@ endobj
 << /S 1245 >>
 
 stream
+%¥×³®í»š}%§X{{tøNåÝž¶ö¢ÖÞgrehtyyy$&%&£$££(*¾–~´¼
 endstream
-endstream
+endobj";
 
             var scanner = GetScanner(s);
 

src/UglyToad.PdfPig/Tokenization/Scanner/PdfTokenScanner.cs

@@ -214,16 +214,9 @@
 
                     // We are reading 'end' (possibly).
                     if (commonPartPosition < commonPart.Length && inputBytes.CurrentByte == commonPart[commonPartPosition])
-                    {
-                        if (commonPartPosition == 0 && !ReadHelper.IsWhitespace(previousByte))
-                        {
-                            // We've just encountered a normal 'e' in the stream.
-                        }
-                        else
                     {
                         commonPartPosition++;
                     }
-                    }
                     else if (commonPartPosition == commonPart.Length)
                     {
                         // We are reading 'stream' after 'end'