tests: add `hg log -G` output when there are merge conflicts
The next commit will change the behavior for these. I've used slightly
different commands in the different tests to match the surrounding
style.
Differential Revision: https://phab.mercurial-scm.org/D8042
extern crate cc;
fn main() {
cc::Build::new()
.warnings(true)
.file("src/sendfds.c")
.file("src/sighandlers.c")
.compile("procutil");
}