lua-language-server wrapper includes -E which does nothing

Description:

The wrapper script for lua-language-server (here) includes a -E flag. This flag is not documented as a valid flag in the documentation here. I think this flag should be removed. As far as I can tell, the flag does nothing.

Additional info:

• package version(s): 3.9.3-1
• config and/or log files: none/default
• link to upstream bug report, if any: https://github.com/LuaLS/lua-language-server/issues/2683

Steps to reproduce:

1. Run lua-language-server.
2. The wrapper runs it with -E.