test(utils): stop bash tail-exec flaking the SIGTERM-ignored terminate test

bash -c "trap \"\" TERM; sleep 60" tail-execs into sleep, so /proc/pid/cmdline
argv0 becomes "sleep". TerminateProcess verifies argv0 == "bash" before signaling;
when the exec wins the startup race against that check it no-ops, the undead
sleep runs its full 60s, and the utils package trips its 120s test timeout.
A trailing "; :" keeps bash resident so the cmdline stays "bash".

Author: CMGS

utils/process_test.go

@@ -210,8 +210,9 @@ func TestTerminateProcess_InvalidPID(t *testing.T) {
 }
 
 func TestTerminateProcess_SIGTERMIgnored_FallsBackToKill(t *testing.T) {
-	// Process that traps SIGTERM: won't die from SIGTERM alone.
-	cmd := exec.Command("bash", "-c", `trap "" TERM; sleep 60`)
+	// Traps SIGTERM so only SIGKILL can end it. The trailing "; :" stops bash from
+	// tail-exec'ing into sleep, which would rename argv0 and fail the "bash" cmdline check.
+	cmd := exec.Command("bash", "-c", `trap "" TERM; sleep 60; :`)
 	if err := cmd.Start(); err != nil {
 		t.Fatalf("start: %v", err)
 	}