[PATCH 0/5] snprintf truncation fixes

I happened today to be looking at a piece of code that used a bare snprintf() without checking for truncation, and I got annoyed enough to root out the last few cases in our codebase. After this series, looking over the results of:

  git grep '[^vxn]snprintf' '*.c' :^compat

is pretty pleasant.

This series also gets rid of some uses of PATH_MAX, which is another pet peeve of mine. :)

  [1/5]: http: use strbufs instead of fixed buffers
  [2/5]: log_write_email_headers: use strbufs
  [3/5]: query_fsmonitor: use xsnprintf for formatting integers
  [4/5]: shorten_unambiguous_ref: use xsnprintf
  [5/5]: fmt_with_err: add a comment that truncation is OK

 fsmonitor.c |  4 ++--
 http.c      | 66 +++++++++++++++++++++++++++++------------------------
 http.h      |  4 ++--
 log-tree.c  | 16 ++++++++-----
 refs.c      |  4 ++--
 usage.c     |  1 +
 6 files changed, 53 insertions(+), 42 deletions(-)

-Peff