Checkmk Werk 13481: check_mk_agent.freebsd: rename MK_TMPDIR to MK_VARDIR

ID: 13481 Title: check_mk_agent.freebsd: rename MK_TMPDIR to MK_VARDIR Component: Checks & agents Level: 1 Class: Bug fix Version: 2.1.0i1 This werk only affects users with custom plugins for the FreeBSD agent that use the environment variable `MK_TMPDIR`. The variable has been renamed to `MK_VARDIR`, to be consistent with the other *nix agents.