Some calls to strcpy(3) triggers a false warning from static
analysers that are less intelligent than humans, and reducing the
number of these false hits helps us notice real issues. A few
calls to strcpy(3) in test-path-utils that are already safe has
been rewritten to avoid false wanings.
* jk/test-path-utils-xsnprintf:
test-path-utils: use xsnprintf in favor of strcpy