Add --once argument, which should cause the agent to never try to run a second job

src/wwwroot/startupscripts/startagent-linux.sh

@@ -36,7 +36,7 @@ cp -f -r $HELIX_CORRELATION_PAYLOAD/* $workspace_path
 cp -f $HELIX_WORKITEM_PAYLOAD/.agent $workspace_path
 cp -f $HELIX_WORKITEM_PAYLOAD/.credentials $workspace_path
 
-$workspace_path/run.sh
+$workspace_path/run.sh --once
 
 # Expect an exit code of 2, which is what is given when the agent connection is revoked
 lastexitcode=$?

src/wwwroot/startupscripts/startagent-win.cmd

@@ -35,7 +35,7 @@ mkdir %WORKSPACEPATH%
 xcopy /Y /S /I %HELIX_CORRELATION_PAYLOAD%\* %WORKSPACEPATH%
 copy /Y %HELIX_WORKITEM_PAYLOAD%\.agent %WORKSPACEPATH%
 copy /Y %HELIX_WORKITEM_PAYLOAD%\.credentials %WORKSPACEPATH%
-call %WORKSPACEPATH%\run.cmd
+call %WORKSPACEPATH%\run.cmd --once
 
 set LASTEXITCODE=%errorlevel%