lualoader: fix lua-lint run

luacheck rightfully complains that i is unused in the show-module-options
loop at the end (it was used for some debugging in the process).

We've added a new pager module that's compiled in, so declare that as an
acceptable global.

stand/lua/cli.lua

@@ -234,7 +234,7 @@ cli["show-module-options"] = function()
 	end
 
 	pager.open()
-	for i, v in ipairs(lines) do
+	for _, v in ipairs(lines) do
 		pager.output(v .. "\n")
 	end
 	pager.close()

tools/boot/lua-lint.sh

@@ -17,4 +17,5 @@ LUACHECK=$(which luacheck)
 cd $(make -V SRCTOP)/stand
 ${LUACHECK} . --globals loader --globals lfs --globals io.getchar \
 	--globals io.ischar --globals printc --globals cli_execute \
-	--globals cli_execute_unparsed --globals try_include --std lua53
+	--globals cli_execute_unparsed --globals try_include \
+	--globals pager --std lua53