widgets: cleanup behind the last commit 363c03e

widgets/cpu.lua

@@ -15,7 +15,6 @@ local string = {
     sub = string.sub,
     gmatch = string.gmatch
 }
-local naught = require("naughty")
 -- }}}
 
 
@@ -34,8 +33,8 @@ local function worker(format)
     local cpu_lines = {}
 
     -- Get CPU stats
-    local fd = io.open("/proc/stat")
-    for line in fd:lines() do
+    local f = io.open("/proc/stat")
+    for line in f:lines() do
         if string.sub(line, 1, 3) ~= "cpu" then break end
 
         cpu_lines[#cpu_lines+1] = {}
@@ -44,7 +43,7 @@ local function worker(format)
             table.insert(cpu_lines[#cpu_lines], i)
         end
     end
-    fd:close()
+    f:close()
 
     -- Ensure tables are initialized correctly
     for i = #cpu_total + 1, #cpu_lines do

widgets/mem.lua

@@ -44,7 +44,7 @@ local function worker(format)
     _mem.swp.usep  = math.floor(_mem.swp.inuse / _mem.swp.t * 100)
 
     return {_mem.usep,     _mem.inuse,     _mem.total, _mem.free,
-            _mem.swp.usep, _mem.swp.inuse, _mem.swp.t, _mem.swp.f, 
+            _mem.swp.usep, _mem.swp.inuse, _mem.swp.t, _mem.swp.f,
             _mem.bcuse }
 end
 -- }}}

widgets/raid.lua

@@ -33,8 +33,8 @@ local function worker(format, warg)
     }
 
     -- Linux manual page: md(4)
-    local fd = io.open("/proc/mdstat")
-    for line in fd:lines() do
+    local f = io.open("/proc/mdstat")
+    for line in f:lines() do
         if mddev[warg]["found"] then
             local updev = string.match(line, "%[[_U]+%]")
 
@@ -51,7 +51,7 @@ local function worker(format, warg)
             end
         end
     end
-    fd:close()
+    f:close()
 
     return {mddev[warg]["assigned"], mddev[warg]["active"]}
 end