sysinfo: Use env to start bash, for FreeBSD compatibility
sysinfo: Backup LC_ALL, because it is overwritten during the script run, but later displayed in locale info...
sysinfo: FreeBSD compatibility
Show GhostBSD release (based on FreeBSD kernel version) in Operating System info
gitinfo: Use env to start bash, for FreeBSD compatibility
Detect existence of a git repositiory using git rev-parse, not only a .git directory in the current working directory, so sub-folders are also detected as a part of the repository