bug#42656: term.c:1405:25: warning: ‘%d’ directive writing between 2 and 10 bytes into a region of size 3

[Paul Eggert]

I regularly get messages like that from old versions of GCC. It's better to 
ignore such messages, as we shouldn't clutter up the code merely to pacify older 
(or buggy) compilers.

You can build with --disable-gcc-warnings to suppress the annoyances with older 
compilers (if you're building from Git, that is; you shouldn't need to specify 
anything if building from a tarball).