Comment # 2 on bug 1212837 from Egbert Eich

/usr/share/lmod/8.7.17/init/bash is not a standalone shell script: it gets
sourced - like the other files in this directory Therefore, none of these
should have the execute bit set.
Furthermore, I've just tested with a freshly updated TW, `zgrep --help` does
not give me the strange error message you are seeing.