fix help and spellcheck

profile.d/prompt.sh

@@ -293,8 +293,8 @@ set_theme()
                 printf "Options:\n"
                 printf "\t-h, --help\tDisplay this help screen\n"
                 printf "\t-l, --list\tList available themes (default when no argument is given)\n"
-                printf "\t-p, --preview\tPreview a theme without applying it\n\n"
-                printf "\t-S, --save\tSave theme to configuration ([prompt] PROMPT_THEME)\n\n"
+                printf "\t-p, --preview\tPreview a theme without applying it\n"
+                printf "\t-S, --save\tSave theme to configuration\n\n"
                 printf "Arguments:\n"
                 printf "\ttheme \tBare theme name (e.g. 'dark') or an explicit path to a .theme file.\n"
                 printf "\t      \tThemes are searched in: %s\n" "$theme_dir"
@@ -420,7 +420,7 @@ set_theme()
             export PROMPT_THEME="$old_theme"
         fi
         for _v in "${old_prompt_color_vars[@]}"; do
-            export "$_v"
+            export "${_v%%=*}=${_v#*=}"
         done
         return 0
     fi