[logback-dev] [qos-ch/logback] 40c95c: backporting of LOGBACK-1175

[Ceki Gulcu]

  Branch: refs/heads/branch_1.2.x
  Home:   https://github.com/qos-ch/logback
  Commit: 40c95cb5b3c444105154d3be1c311827a4e746fd
      https://github.com/qos-ch/logback/commit/40c95cb5b3c444105154d3be1c311827a4e746fd
  Author: Ceki Gulcu <ceki at qos.ch>
  Date:   2021-07-16 (Fri, 16 Jul 2021)

  Changed paths:
    M logback-core/src/main/java/ch/qos/logback/core/rolling/helper/FileNamePattern.java
    M logback-core/src/test/java/ch/qos/logback/core/rolling/helper/FileNamePatternTest.java

  Log Message:
  -----------
  backporting of LOGBACK-1175

Signed-off-by: Ceki Gulcu <ceki at qos.ch>