It would be helpful if Skara bots issued warnings on trailing period `.` characters in a PR title. While such periods are very often unconventional or bad typography, in some cases they are essential; for example:

 * 6560981: (cal) unused local variables in GregorianCalendar, etc.)
 * 8289872: wrong wording in @param doc for HashMap.newHashMap et. al.
 * 8288599: com/sun/management/OperatingSystemMXBean/TestTotalSwap.java: Expected total swap size ... but getTotalSwapSpaceSize returned ...

Hence a warning, not an error.