gcal -q DE / gcal: option with invalid argument -- qDE

[slithercalcrete]

Hello

Would it make sense to -- beside the territory specific holiday list -- 
have additionally an country specific overall holiday list?


At least some holidays (Christmas Eve, New Year's Day etc.) are common 
all over Germany:

$ gcal -q DE
gcal: option with invalid argument -- qDE
Usage:  gcal [-|/{[?|h|??|hh|L|V]|{CDFIPHKNORSXbcfijnpqrsuv}}] [[MM] 
[YYYY]]
Use `gcal --usage[=ARG]|[=?] --pager' for more information.

versus

$ gcal -q DE_BY

      July 2020
 Su Mo Tu We Th Fr Sa
           1  2  3  4
  5  6  7  8  9 10 11
 12<13>14 15 16 17 18
 19 20 21 22 23 24 25
 26 27 28 29 30 31