Add missing modelines to tests/*.lua

Signed-off-by: Uli Schlachter <psychon@znc.in>

tests/_multi_screen.lua

@@ -520,3 +520,5 @@ end
 return setmetatable(module, {
                     __call = function(_,...) return add_steps(...) end
                 })
+
+-- vim: filetype=lua:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80

tests/test-awesomerc.lua

@@ -226,3 +226,5 @@ local steps = {
 }
 
 require("_runner").run_steps(steps)
+
+-- vim: filetype=lua:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80

tests/test-awful-client.lua

@@ -309,3 +309,5 @@ end)
 require("_multi_screen")(steps, multi_screen_steps)
 
 require("_runner").run_steps(steps)
+
+-- vim: filetype=lua:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80

tests/test-awful-layout.lua

@@ -120,3 +120,5 @@ for _ in ipairs(awful.layout.layouts) do
 end
 
 require("_runner").run_steps(steps)
+
+-- vim: filetype=lua:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80

tests/test-awful-rules.lua

@@ -296,3 +296,5 @@ local function spawn_clients()
 end
 
 require("_runner").run_steps{spawn_clients, unpack(tests)}
+
+-- vim: filetype=lua:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80

tests/test-awful-tag.lua

@@ -242,3 +242,5 @@ end)
 require("_multi_screen")(steps, multi_screen_steps)
 
 require("_runner").run_steps(steps)
+
+-- vim: filetype=lua:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80

tests/test-miss-handlers.lua

@@ -69,3 +69,5 @@ assert(w2.main_background.main_textbox)
 assert(w2.main_background == w2:get_children_by_id("main_background")[1])
 
 require("_runner").run_steps({ function() return true end })
+
+-- vim: filetype=lua:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80

tests/test-resize.lua

@@ -440,3 +440,5 @@ table.insert(steps, function()
 end)
 
 require("_runner").run_steps(steps)
+
+-- vim: filetype=lua:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80

tests/test-struts.lua

@@ -317,5 +317,6 @@ check_maximize()
 return true
 end)
 
-
 require("_runner").run_steps(steps)
+
+-- vim: filetype=lua:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80