Fixes:
+• Fix build with gcc 8 -Werror=cast-function-type
+ (fd.o #107349, Simon McVittie)
+
+• Fix warning from gcc 8 about suspicious use of strncpy() when
+ populating struct sockaddr_un (fd.o #107350, Simon McVittie)
+
+• Fix a minor memory leak when a DBusServer listens on a new address
+ (fd.o #107194, Simon McVittie)
+
+• Fix an invalid NULL argument to rmdir() if a nonce-tcp DBusServer
+ runs out of memory (fd.o #107194, Simon McVittie)
+
• Don't use misleading errno-derived error names if getaddrinfo() or
getnameinfo() fails with a code other than EAI_SYSTEM
(fd.o #106395, Simon McVittie)