po/make_pot: Remove some COMMAND_GROUP keywords again

Specifying multiple arguments of the same function seems to break
things, and the other field are (currently) all duplicated anyway. The
descripting is the one that's most likely to have unique strings at some
point.

po/make_pot.sh

@@ -16,8 +16,7 @@ maybe_append() {
 
 find ../src ../src/command -name '*.cpp' -o -name '*.h' \
   | xgettext --files-from=- -o - --c++ --sort-by-file \
-             -k_ -kSTR_MENU -kSTR_DISP -kSTR_HELP \
-             -kCOMMAND_GROUP:3 -kCOMMAND_GROUP:4 -kCOMMAND_GROUP:5 \
+             -k_ -kSTR_MENU -kSTR_DISP -kSTR_HELP -kCOMMAND_GROUP:5 \
              -kfmt_tl -kfmt_plural:2,3 \
   | sed 's/SOME DESCRIPTIVE TITLE./Aegisub 3.2/' \
   | sed 's/YEAR/2005-2014/' \

po/meson.build

@@ -7,9 +7,8 @@ i18n = import('i18n')
 # Until a solution is found, POT updates should continue to use make_pot.sh.
 i18n.gettext('aegisub',
              args: [
-                '-k_', '-kSTR_MENU', '-kSTR_DISP', '-kSTR_HELP',
-                '-kCOMMAND_GROUP:3', '-kCOMMAND_GROUP:4', '-kCOMMAND_GROUP:5,',
-              '-kfmt_tl', '-kfmt_plural:2,3',
+                '-k_', '-kSTR_MENU', '-kSTR_DISP', '-kSTR_HELP', '-kCOMMAND_GROUP:5,',
+                '-kfmt_tl', '-kfmt_plural:2,3',
                 '--sort-by-file'
              ],
              install_dir: localedir)