CURRENT r 258138 fails to build: usr.bin/gperf: error: format string is empty

I receive this error now in CURRENT r258138:


cc  -O2 -pipe -O3 -march=native -pipe -O3 -DRESCUE -std=gnu99
-Qunused-arguments -fstack-protector -Wsystem-headers -Werror -Wall
-Wno-format-y2k -W -Wno-unused-parameter -Wstrict-prototypes
-Wmissing-prototypes -Wpointer-arith -Wreturn-type -Wcast-qual
-Wwrite-strings -Wswitch -Wshadow -Wunused-parameter -Wcast-align
-Wchar-subscripts -Winline -Wnested-externs -Wredundant-decls
-Wold-style-definition -Wmissing-variable-declarations
-Wno-pointer-sign -Wno-empty-body -Wno-string-plus-int
-c /usr/src/usr.bin/tail/tail.c --- gnu.all__D
--- /usr/src/gnu/usr.bin/gperf/../../../contrib/gperf/src/output.cc:1910:11:
error: format string is empty [-Werror,-Wformat-zero-length] "",
option.get_size_type()); ^~ 2 errors generated. *** [output.o] Error
code 1


Oliver