Report Full: iterate on line wrapping bug fix [3]

Don't hard code the color code length to prevent this breaking on potential future changes.

Co-authored-by: Brad Jorsch <anomie@users.sourceforge.net>

Author: jrfnl

src/Reports/Full.php

@@ -121,6 +121,7 @@ public function generateFileReport($report, File $phpcsFile, $showSources=false,
             $beforeMsg = "\033[1m";
             $afterMsg  = "\033[0m";
         }
+        $beforeAfterLength = strlen($beforeMsg.$afterMsg);
 
         foreach ($report['messages'] as $line => $lineErrors) {
             foreach ($lineErrors as $column => $colErrors) {
@@ -150,7 +151,7 @@ public function generateFileReport($report, File $phpcsFile, $showSources=false,
                         // Add space + source suffix length.
                         $lastMsgPlusSourceLength += (1 + strlen($sourceSuffix));
                         // Correct for the color codes.
-                        $lastMsgPlusSourceLength -= 8;
+                        $lastMsgPlusSourceLength -= $beforeAfterLength;
 
                         if ($lastMsgPlusSourceLength > $maxErrorSpace) {
                             $errorMsg .= PHP_EOL.$paddingLine2.$sourceSuffix;