We're beginning to use remote caches with Android builds, so I'm turning
on -Werror=date-time so that host builds are also reproducible.
Test: treehugger
Test: mmma external/libavc
Change-Id: I581f3abf528a7bb5df6ee9963f4d72e2b4bb8a6c
Don't do concatenation with strncat; the length parameter in strncat
is only for how many chars to append at most, not for the full output
buffer size. To safely use strncat, one would have to do
strncat(buf, str, sizeof(buf) - strlen(buf)).
By using snprintf, we guarantee that the buffer is null terminated, and
we don't need to use strnlen at all.
(If compatibility with older MSVC versions that lack snprintf, one
can use _snprintf instead and manually add the null termination.)
Change-Id: I1c2322c7a406ddd5e6551a96c460da60deeffda1