message: Fix typo
  changed "an file" to "a file"
diff: @@ -162,7 +162,7 @@ Options:
  -s, --schemes : Displays all available schemes
  -l, --location : Displays the full path to the schemes directory
  -v, --version : Display the version number
  - -o, --output &lt;filename&gt; : output the current color table to an file (in .ini format)
  + -o, --output &lt;filename&gt; : output the current color table to a file (in .ini format)
  Available importers:
  {0}</value>
  