Add a few words about tg and tg2.
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parameters affecting NTP operations. See the tickadj page in the HTML
documentation for further details. tickadj will be built if configure
believes your system can use it.
+
+tg.c and tg2.c are tone generators. They make audio signals
+that emulate WWV or IRIG (-B and -E). tg runs on Solaris.
+tg2 is a clone that runs on Linux, FreeBSD, and NetBSD.
+Read the source for the fine print. tg2 has a help option
+available via -h.
+