[logback-dev] [qos-ch/logback] 2becca: fix LOGBACK-1167

[Ceki Gulcu]

  Branch: refs/heads/master
  Home:   https://github.com/qos-ch/logback
  Commit: 2becca824bf17834c745b30994d37fc0ae353b1d
      https://github.com/qos-ch/logback/commit/2becca824bf17834c745b30994d37fc0ae353b1d
  Author: Ceki Gulcu <ceki at qos.ch>
  Date:   2017-01-20 (Fri, 20 Jan 2017)

  Changed paths:
    A logback-classic/src/test/input/joran/sift/fileAppender.xml
    M logback-classic/src/test/java/ch/qos/logback/classic/LoggerContextTest.java
    M logback-classic/src/test/java/ch/qos/logback/classic/sift/SiftingAppenderTest.java
    M logback-core/src/main/java/ch/qos/logback/core/FileAppender.java
    M logback-core/src/main/java/ch/qos/logback/core/rolling/RollingFileAppender.java
    M logback-core/src/main/java/ch/qos/logback/core/util/ContextUtil.java
    M logback-core/src/test/java/ch/qos/logback/core/rolling/CollisionDetectionTest.java
    M logback-site/src/site/pages/news.html

  Log Message:
  -----------
  fix LOGBACK-1167