bug#30408: Checking for loss of information on integer conversion

[Paul Eggert]

Since the qualms expressed on this topic had to do with converting strings to 
integers, I installed into master the noncontroversial part affecting conversion 
of integers to strings (see attached patch; it also fixes some minor glitches in 
the previous proposal). I'll think about the string-to-integer conversion a bit 
more and propose an updated patch for that.

0001-Avoid-losing-info-when-formatting-integers.patch
Description: Text Data