Fix wrapping of text lines with the same length as specified length limit

1 files changed, 4 insertions, 3 deletions

diff --git a/program/lib/Roundcube/rcube_mime.php b/program/lib/Roundcube/rcube_mime.php
index 2f24a1bb3..d21e3b4d5 100644
--- a/program/lib/Roundcube/rcube_mime.php
+++ b/program/lib/Roundcube/rcube_mime.php
@@ -595,11 +595,12 @@ class rcube_mime
             while (count($list)) {
                 $line   = array_shift($list);
                 $l      = mb_strlen($line);
-                $newlen = $len + $l + ($len ? 1 : 0);
+                $space  = $len ? 1 : 0;
+                $newlen = $len + $l + $space;
 
                 if ($newlen <= $width) {
-                    $string .= ($len ? ' ' : '').$line;
-                    $len += (1 + $l);
+                    $string .= ($space ? ' ' : '').$line;
+                    $len += ($space + $l);
                 }
                 else {
                     if ($l > $width) {