*
* Queries the system monotonic time, if available.
*
- * On POSIX systems with clock_gettime() and %CLOCK_MONOTONIC this call
+ * On POSIX systems with clock_gettime() and <literal>CLOCK_MONOTONIC</literal> this call
* is a very shallow wrapper for that. Otherwise, we make a best effort
* that probably involves returning the wall clock time (with at least
* microsecond accuracy, subject to the limitations of the OS kernel).
*
- * It's important to note that POSIX %CLOCK_MONOTONIC does not count
- * time spent while the machine is suspended.
+ * It's important to note that POSIX <literal>CLOCK_MONOTONIC</literal> does
+ * not count time spent while the machine is suspended.
*
* On Windows, "limitations of the OS kernel" is a rather substantial
* statement. Depending on the configuration of the system, the wall