[LINTER] Fix a couple cppcheck issues
Summary:
This diff adds 2 cppcheck exceptions:
- One for a bug with the current debian version (1.86):
Error (CPPCHECK) containerOutOfBounds
Out of bounds access in expression 'test.at(1)' because 'test' is
empty
and 'at' may be non-zero.
48 bool sanity_test_range_fmt() {
49 std::string test;
50 try {
>>> 51 test.at(1);
^
52 } catch (const std::out_of_range &) {
53 return true;
54 } catch (...) {- One issue which is a false positive that we create deliberately for a sanity check. This one is not found by Debian's version but is by the ArchLinux version (2.3).
Test Plan:
On Debian (1.86) and Arch (2.3):
arc lint --everything
Reviewers: #bitcoin_abc, PiRK
Reviewed By: #bitcoin_abc, PiRK
Differential Revision: https://reviews.bitcoinabc.org/D8909