pass PID file to tbot

Author: sclevine

tool/tbot/testdata/TestInstallSystemdCmd/succeeds_prexisting_with_force.golden

@@ -10,7 +10,7 @@ Group=llamas
 Restart=always
 RestartSec=5
 Environment="TELEPORT_ANONYMOUS_TELEMETRY=0"
-ExecStart=/usr/local/bin/tbot start -c /etc/tbot.yaml
+ExecStart=/usr/local/bin/tbot start -c /etc/tbot.yaml --pid-file=/run/tbot.pid
 ExecReload=/bin/kill -HUP $MAINPID
 PIDFile=/run/tbot.pid
 LimitNOFILE=524288

tool/tbot/testdata/TestInstallSystemdCmd/success_-_defaults.golden

@@ -10,7 +10,7 @@ Group=teleport
 Restart=always
 RestartSec=5
 Environment="TELEPORT_ANONYMOUS_TELEMETRY=0"
-ExecStart=/usr/local/bin/tbot start -c /etc/tbot.yaml
+ExecStart=/usr/local/bin/tbot start -c /etc/tbot.yaml --pid-file=/run/tbot.pid
 ExecReload=/bin/kill -HUP $MAINPID
 PIDFile=/run/tbot.pid
 LimitNOFILE=524288

tool/tbot/testdata/TestInstallSystemdCmd/success_-_defaults_and_dry_run.golden

@@ -13,7 +13,7 @@ Group=teleport
 Restart=always
 RestartSec=5
 Environment="TELEPORT_ANONYMOUS_TELEMETRY=0"
-ExecStart=/usr/local/bin/tbot start -c /etc/tbot.yaml
+ExecStart=/usr/local/bin/tbot start -c /etc/tbot.yaml --pid-file=/run/tbot.pid
 ExecReload=/bin/kill -HUP $MAINPID
 PIDFile=/run/tbot.pid
 LimitNOFILE=524288

tool/tbot/testdata/TestInstallSystemdCmd/success_-_overrides.golden

@@ -10,7 +10,7 @@ Group=llamas
 Restart=always
 RestartSec=5
 Environment="TELEPORT_ANONYMOUS_TELEMETRY=1"
-ExecStart=/usr/local/bin/tbot start -c /etc/tbot.yaml
+ExecStart=/usr/local/bin/tbot start -c /etc/tbot.yaml --pid-file=/run/my-farm-bot.pid
 ExecReload=/bin/kill -HUP $MAINPID
 PIDFile=/run/my-farm-bot.pid
 LimitNOFILE=524288