1a80249d build: verify libgit2 tarball sha256
74c3d56f bash: call mktemp only once and avoid `mktemp -u`
b139dec4 install: use mktemp if available
9f594d24 bash: block SIGQUIT and SIGTSTP in daemon
73f47ea3 add sha256 verification for downloaded gitstatusd; enable gitee mirror
git-subtree-dir: gitstatus
git-subtree-split: 1a80249d2b6a53fd076ae846f8fcc501183ca5a5