bug(secret): long secrets with short line prefix/suffix contain characters from other lines

[DmitriyLewen]

Description

long secrets with short line prefix/suffix (characters before and after secret) contain characters from other strings. We limit long lines, but we need to include characters only from detected line.

See example:

   1   asd
   2   aaaa
   3 [ asd
aaaa
jwt: ***********************************************************************************************************************************************************

asda
   4