sudo/redirections: Fix remaining part of issue #221, "sudo and redirection don't mix".

highlighters/main/main-highlighter.zsh

@@ -189,7 +189,8 @@ _zsh_highlight_main_highlighter()
       if [[ $this_word == *':sudo_opt:'* ]]; then
         case "$arg" in
           # Flag that requires an argument
-          '-'[Cgprtu]) next_word=':sudo_arg:';;
+          '-'[Cgprtu]) this_word=${this_word//:start:/};
+                       next_word=':sudo_arg:';;
           # This prevents misbehavior with sudo -u -otherargument
           '-'*)        next_word+=':sudo_opt:';;
           *)           this_word+=':start:';;

highlighters/main/test-data/sudo-redirection2.zsh

@@ -33,7 +33,7 @@ expected_region_highlight=(
   "1 4 $ZSH_HIGHLIGHT_STYLES[precommand]" # sudo
   "6 6 $ZSH_HIGHLIGHT_STYLES[redirection]" # >
   "7 10 $ZSH_HIGHLIGHT_STYLES[path]" # /tmp
-  "12 13 $ZSH_HIGHLIGHT_STYLES[single-hyphen-option] 'issue #221'" # -u
+  "12 13 $ZSH_HIGHLIGHT_STYLES[single-hyphen-option]" # -u
   "15 23 $ZSH_HIGHLIGHT_STYLES[default]" # otheruser
   "25 26 $ZSH_HIGHLIGHT_STYLES[command]" # ls
 )