Merge branch 'siri/logger/post-21-continues/OTP-15132' into maint

* siri/logger/post-21-continues/OTP-15132:
  [logger] Read config before terminating handler process
  [error_logger] Handle report_cb with arity 2
  [proc_lib] Improve crash reports for single line logging
  [logger] Include single_line option to report_cb
  [logger] Check for deadlock when removing filters
  [logger] Fix spec for handler callbacks to always return ok
  [logger] Increase timetrap timer for handler_requests_under_load test
  [logger] Improve code coverage in test
  [logger] Refactor, and add error detection for configuration
  [logger] Fix logger_disk_log_h_SUITE:sync and add som debug info
  [logger] Update doc about file options in logger_std_h
  [logger] Remove encoding option from logger_formatter
  Remove outdated reference to error loggers
  [logger] Refactor some logger internals

1 files changed, 1 insertions, 1 deletions

diff --git a/system/doc/design_principles/des_princ.xml b/system/doc/design_principles/des_princ.xml
index e21f2a7f4e..dbb31a7bb7 100644
--- a/system/doc/design_principles/des_princ.xml
+++ b/system/doc/design_principles/des_princ.xml
@@ -64,7 +64,7 @@
       the supervisors are similar in structure. The only difference
       between them is which child processes they supervise. Many
       of the workers are servers in a server-client relation,
-      finite-state machines, or event handlers such as error loggers.</p>
+      finite-state machines, or event handlers.</p>
     <p><em>Behaviours</em> are formalizations of these common patterns.
       The idea is to divide the code for a process in a generic part
       (a behaviour module) and a specific part (a