hcitool, rfcomm, ciptool, hciconfig: Don't leak $args.

completions/hcitool

@@ -60,6 +60,7 @@ _hcitool()
                 clock' -- "$cur" ) )
         fi
     else
+        local args
         case $arg in
             name|info|dc|rssi|lq|afh|auth|key|clkoff|lst)
                 _count_args
@@ -214,6 +215,7 @@ _rfcomm()
                 release' -- "$cur" ) )
         fi
     else
+        local args
         _count_args
         if [[ $args -eq 2 ]]; then
             _bluetooth_devices
@@ -253,6 +255,7 @@ _ciptool()
                 -- "$cur" ) )
         fi
     else
+        local args
         case $arg in
             connect|release|loopback)
                 _count_args
@@ -313,6 +316,7 @@ _hciconfig()
                 version revision lm' -- "$cur" ) )
         fi
     else
+        local args
         case $arg in
             putkey|delkey)
                 _count_args