[bug#37465] add xftwidth displayed textwidth calculator package

[Ludovic Courtès]

Hello Kyle,

Kyle Andrews <address@hidden> skribis:

> From 60deaa526b4a6ca5a66f3b67ba77aa353409d542 Mon Sep 17 00:00:00 2001
> From: Kyle Andrews <address@hidden>
> Date: Thu, 19 Sep 2019 20:16:28 -0400
> Subject: [PATCH] gnu: Add xftwidth.
>
> * gnu/packages/wm.scm: added xftwidth package.

I think this should rather go to xdisorg.scm, WDYT?

> +    (build-system gnu-build-system)
> +    (inputs `(("freetype"    ,freetype)
> +              ("libx11"      ,libx11)
> +              ("fontconfig"  ,fontconfig)
> +              ("libxft"      ,libxft)))

Nitpicking: we don’t usually align input tuples like that.  :-)

> +    (synopsis "Calculator for determining displayed text widths using Xft 
> fonts.")
> +    (description "A small C program to calculate pixel widths for displayed
> +text using Xft fonts (given a specific font name and size). It is ideal for
> +scripts including text into the custom (e.g. dzen and xmobar based) panels
> +often used in conjunction with minimalistic window managers.")

Could you address the warnings reported by ‘guix lint’ here?  Also, make
sure to write full sentences in the description:

  https://guix.gnu.org/manual/en/html_node/Synopses-and-Descriptions.html

The rest LGTM!  Could you send an updated patch?

Thanks,
Ludo’.