Follow-up Comment #13, bug #91844 (project xrootd):
It appears that the latest versions of sprintf() in glibc now pass the target
buffer length and will complain if it is too small for the format being used.
I suppose that's nice but obviously violates the man page description. In
this case, the buffer didn't include a place for the null byte. This was done
on purpose because the null byte was supposed to be placed in the next
adjacent buffer element (the output buffer is actually a struct of adjacent
output buffers). This simply means that the sprintf() needs to be changed to
an snprintf(). We'll schedule a fix for this. Let's just hope that glibc
developers didn't screw that one up as snprintf() is really supposed to
discard characters that don't fit without complaint.
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