fix some inconsistencies

- the currently edited word should be omitted when removing
   duplicate completion suggestions, which is not necessarily
   the last word
 - when using "compgen", mark "$cur" as non-option argument
 - some formatting cleanup

pulseaudio-tcp.bash_completion

@@ -1,12 +1,20 @@
 _pulseaudio_tcp_completions() {
-  local options commands cur delete all_options command_pattern all_commands
+  local \
+    all_commands \
+    all_options \
+    command_pattern \
+    commands \
+    cur \
+    delete \
+    options
 
   options=( "--debug" "--help" "--nogui" )
   commands=( "start" "stop" "status" "setup" "restart" )
 
   cur=${COMP_WORDS[COMP_CWORD]}
 
-  for delete in "${COMP_WORDS[@]::${#COMP_WORDS[@]}-1}" ; do
+  for delete in "${COMP_WORDS[@]}" ; do
+    [[ $delete = "$cur" ]] && continue
     options=("${options[@]/$delete}")
     commands=("${commands[@]/$delete}")
   done
@@ -22,7 +30,15 @@ _pulseaudio_tcp_completions() {
     all_commands="${commands[*]}"
   fi
 
-  mapfile -t COMPREPLY < <(compgen -W "$all_options $all_commands" "$cur")
+  mapfile -t COMPREPLY < <(
+    compgen \
+        -W "$all_options $all_commands" \
+        -- "$cur"
+  )
 
   return 0
-} && complete -F _pulseaudio_tcp_completions pulseaudio-tcp
+}
+
+complete -F _pulseaudio_tcp_completions pulseaudio-tcp
+
+# vim:et ft=bash sw=2 ts=2