[Issue 21339] New: --DRT-trapExceptions is not documented

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=21339

          Issue ID: 21339
           Summary: --DRT-trapExceptions is not documented
           Product: D
           Version: D2
          Hardware: x86_64
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P1
         Component: dlang.org
          Assignee: nobody at puremagic.com
          Reporter: acehreli at yahoo.com

--DRT-trapExceptions=0 was introduced in dmd 2.080 but it is nowhere to be
found on the dlang site:

  https://dlang.org/changelog/2.082.0.html#exceptions-opt

It would be nice to make sure all runtime switches are documented.

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