https://issues.dlang.org/show_bug.cgi?id=21026

          Issue ID: 21026
           Summary: add core.bitop.bswap(ushort)
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P1
         Component: druntime
          Assignee: nobody@puremagic.com
          Reporter: bugzilla@digitalmars.com

This is complements bswap(uint).

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