Re: [head tinderbox] failure on amd64/amd64

> [...]
> c++  -O2 -pipe -Qunused-arguments -fstack-protector -Wsystem-headers -Werror -Wno-empty-body -Wno-string-plus-int -Wno-tautological-compare -Wno-unused-value -Wno-parentheses-equality -Wno-unused-function -Wno-conversion -Wno-switch -Wno-switch-enum -Wno-knr-promoted-parameter -Wno-parentheses -Wno-c++11-extensions -I/src/gnu/usr.bin/gperf/../../../contrib/gperf/lib -I/src/gnu/usr.bin/gperf -c /src/gnu/usr.bin/gperf/../../../contrib/gperf/src/output.cc
> /src/gnu/usr.bin/gperf/../../../contrib/gperf/src/output.cc:782:11: error: format string is empty [-Werror,-Wformat-zero-length]
>           "", option.get_size_type());
>           ^~
> /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());

Theoretically fixed at svn R258139.

sean