This test is excluded on macOS due to platform-specific limitations:

REASON: system() and popen() with shell commands hang on macOS when the parent
process has active child processes. This test uses:
1. system() calls to run bpsource/bpsink for bundle transmission tests
2. popen() with "ps aux | grep" to detect running processes

These operations hang indefinitely on macOS when ION daemons are running as
child processes.

The core functionality tested (LTP admin API and bundle transmission) is
sufficiently covered by tests on Linux/Solaris where these system calls work
reliably.
