Description of problem:
Use of egrep cause complaints from grep (use -E)
Please change instances of egrep to grep -E

Version-Release number of selected component (if applicable):
lynis    3.0.8-3.fc38

How reproducible:
Always

Steps to Reproduce:
1. run lynis
2. See lines...
220:        LANGUAGE=$(locale | egrep "^LANG=" | cut -d= -f2 | cut -d_ -f1 | tr -d '"' | egrep "^[a-z]{2}$")
223:            DISPLAY_LANG=$(locale | egrep "^LANG=" | cut -d= -f2)

3.

Actual results:
egrep: warning: egrep is obsolescent; using grep -E

Expected results:
No warning with use of grep -E


Additional info: