Besides having better error checking, glibc's atol() is simply a
wrapper around strtol() anyway. (Unsure about MSVC, but it's
probably similar.)
Among other things, with _ttol(), "-xJ" would end up being interpreted
as "-x0", since _ttol() returns 0 for an invalid number.
[lcoale] es.po, pt.po: Remove incorrect localizations for this code.