elua: use the new app loading system

po/Makevars

@@ -13,7 +13,7 @@ XGETTEXT_FALLBACK := $(XGETTEXT)
 # Override xgettext with a LuaJIT aware variant (which calls
 # into plain xgettext if it needs to, and handles Lua on its own)
 XGETTEXT = XGETTEXT=$(XGETTEXT_FALLBACK) EFL_RUN_IN_TREE=1 \
-	$(top_builddir)/src/bin/elua/elua $(top_builddir)/src/bin/elua/xgettext.lua
+	$(top_builddir)/src/bin/elua/elua :xgettext
 
 # These options get passed to xgettext.
 XGETTEXT_OPTIONS = --keyword=_ --keyword=N_ --from-code=UTF-8 --foreign-user

src/bin/elua/apps/xgettext.lua

@@ -159,7 +159,7 @@ local opts, args = getopt.parse {
     }
 }
 
-if not opts or opts["h"] or opts["v"] or #args == 0 then
+if not opts or opts["h"] or opts["v"] then
     return true
 end
 
@@ -205,9 +205,7 @@ if hasxgettext and not onlylua then
             gargs[#gargs + 1] = v
         end
     end
-    if #gargs ~= ngargs then
-        cutil.exec(unpack(gargs))
-    end
+    cutil.exec(unpack(gargs))
 end
 
 return true