minor swiftmailer#1290 Remove stray characters from Utf8Reader (szepe…

…viktor)

This PR was merged into the 6.3-dev branch.

Discussion
----------

Remove stray characters from Utf8Reader

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| Doc update?   | no
| BC breaks?    | no
| Deprecations? | no
| Fixed tickets | -
| License       | MIT

Found 2 characters, removed them.

Commits
-------

fdbe219 Remove stray characters from Utf8Reader

lib/classes/Swift/CharacterReader/Utf8Reader.php

@@ -18,7 +18,7 @@ class Swift_CharacterReader_Utf8Reader implements Swift_CharacterReader
 {
     /** Pre-computed for optimization */
     private static $length_map = [
-        // N=0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F,
+        // N=0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F
         1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 0x0N
         1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 0x1N
         1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 0x2N
@@ -34,7 +34,7 @@ class Swift_CharacterReader_Utf8Reader implements Swift_CharacterReader
         2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, // 0xCN
         2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, // 0xDN
         3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, // 0xEN
-        4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 6, 6, 0, 0,  // 0xFN
+        4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 6, 6, 0, 0, // 0xFN
     ];
 
     private static $s_length_map = [