[Webkit-unassigned] [Bug 216323] New: kill-old-processes: Avoid calling kill command with empty string

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=216323

            Bug ID: 216323
           Summary: kill-old-processes: Avoid calling kill command with
                    empty string
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Tools / Tests
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: lmoura at igalia.com

Currently, the kill-old-processes command to kill python scripts (like run-webkit-tests) has an unchecked "xargs kill" at the end, which may output an error message if there is no such command to be killed (as it is the case most of the time). Linux' version of xargs has the "-r" option which can be used to avoid running the command.

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