* iconvdata/Makefile (generate-8bit-table): Use LC_ALL=C.
(generate-8bit-gap-table): Likewise.
($(objpfx)iso8859-7jp.stmp): Likewise.
* iconvdata/Makefile (generate-8bit-table): Use LC_ALL=C.
(generate-8bit-gap-table): Likewise.
($(objpfx)iso8859-7jp.stmp): Likewise.