[2.1.0] Checkmk Werk 16165 created: check_mk_agent: Set LC_ALL before running the agent

Title: check_mk_agent: Set LC_ALL before running the agent Class: fix Compatible: compat Component: checks Date: 1704190188 Edition: cre Level: 1 Version: 2.1.0p38 Previously, Checkmk agents would be run with a preset LC_ALL environment variable if neither C.UTF-8 or C.utf-8 locales were installed. That led to invalid agent output and crashes in section parsing in multiple checks for some of the locales. Linux, AIX, Solaris, FreeBSD and OpenWrt agents were affected. Now, LC_ALL variable is set to C for the described case.