Fix 'scheme-indent-function' to indent s-expressions starting with a keyword
properly, like this:

(#:foo 1
 #:bar 2)

instead of like this:

(#:foo 1
       #:bar 2)

The fix is made by Mark H Weaver <mhw@netris.org>:
<http://www.netris.org/~mhw/scheme-indent-function.el>

--- a/lisp/progmodes/scheme.el
+++ b/lisp/progmodes/scheme.el
@@ -494,6 +494,12 @@ indentation."
                         (> (length function) 3)
                         (string-match "\\`def" function)))
                (lisp-indent-defform state indent-point))
+              ((and (null method)
+                    (> (length function) 1)
+                    ;; The '#' in '#:' seems to get lost, not sure why
+                    (string-match "\\`:" function))
+               (let ((lisp-body-indent 1))
+                 (lisp-indent-defform state indent-point)))
               ((integerp method)
                (lisp-indent-specform method state
                                      indent-point normal-indent))
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<div class='path'>path: <a href='/guix/log/?id=5a20a14c3e0ccf762b54d60ef176b72b1e565c61'>root</a>/<a href='/guix/log/build-aux?id=5a20a14c3e0ccf762b54d60ef176b72b1e565c61'>build-aux</a>/<a href='/guix/log/build-aux/cuirass?id=5a20a14c3e0ccf762b54d60ef176b72b1e565c61'>cuirass</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/build-aux/cuirass?id=5a20a14c3e0ccf762b54d60ef176b72b1e565c61&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2022-05-26 11:41:05 +0200'>2022-05-26</span></td><td><a href='/guix/commit/build-aux/cuirass?id=d90bd5642a3663cc7d5124068fadbf8fa28b3207'>cuirass: Create just as many threads as needed.</a><span class='msg-avail'>...<span class='msg-tooltip'>* build-aux/cuirass/evaluate.scm (command-line): Change second argument
to 'n-par-for-each'.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2022-05-26 11:41:05 +0200'>2022-05-26</span></td><td><a href='/guix/commit/build-aux/cuirass?id=98a6642298be6663b9d318b7dea46d1dba275839'>cuirass: Fork inferior processes before creating threads.</a><span class='msg-avail'>...<span class='msg-tooltip'>Works around &lt;https://issues.guix.gnu.org/55441#12&gt;.

Start from commit bd86bbd300474204878e927f6cd3f0defa1662a5,
'open-inferior' uses 'primitive-fork' instead of 'open-pipe*'.  As a
result, child process could potentially hang before calling 'execl' due
to undefined behavior when forking a multi-threaded process.

* build-aux/cuirass/evaluate.scm &lt;top level&gt;: Call 'open-inferior'
before 'n-par-for-each'.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2022-05-20 18:46:07 +0200'>2022-05-20</span></td><td><a href='/guix/commit/build-aux/cuirass?id=598f7289db9955584457ffc11c8504f3938a1618'>cuirass: Close each inferior upon completion.</a><span class='msg-avail'>...<span class='msg-tooltip'>* build-aux/cuirass/evaluate.scm &lt;top level&gt;: Add 'close-inferior' call.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2021-03-10 08:49:48 +0100'>2021-03-10</span></td><td><a href='/guix/commit/build-aux/cuirass?id=76bea3f8bcd951ded88dfb7f8cad5bc3e5a1701f'>ci: Remove hydra support.</a><span class='msg-avail'>...<span class='msg-tooltip'>This removes hydra support to use Cuirass as the only continuous integration
system.

* build-aux/hydra/gnu-system.scm: Remove it.
* build-aux/hydra/guix-modular.scm: Ditto.
* build-aux/hydra/guix.scm: Ditto.
* build-aux/cuirass/hydra-to-cuirass.scm: Ditto.
* Makefile.am (EXTRA_DIST): Update it.
(hydra-jobs.scm): Remove it.
(cuirass-jobs.scm): Update it.
* build-aux/hydra/evaluate.scm: Move it to ...
* build-aux/cuirass/evaluate.scm: ... here.
* build-aux/cuirass/guix-modular.scm: Remove it.
* build-aux/cuirass/gnu-system.scm: Ditto.
* guix/packages.scm (%hydra-supported-systems): Rename it to ...
(%cuirass-supported-systems): ... this variable.
* build-aux/check-final-inputs-self-contained: Adapt it.
* etc/release-manifest.scm: Ditto.
* gnu/ci.scm (package-&gt;alist): Remove it.
(derivation-&gt;job): New procedure.
(package-job, package-cross-job, cross-jobs, image-jobs, system-test-jobs,
tarball-jobs): Use it.
(guix-jobs): New procedure.
(hydra-jobs): Rename it to ...
(cuirass-jobs): ... this procedure.
</span></span></td><td>Mathieu Othacehe</td></tr>
<tr><td><span title='2020-10-04 14:04:14 +0200'>2020-10-04</span></td><td><a href='/guix/commit/build-aux/cuirass?id=fdbf8a7a75e9d63957ea6d8a63181aa131edeaea'>cuirass: Add hurd-manifest.</a><span class='msg-avail'>...<span class='msg-tooltip'>* build-aux/cuirass/hurd-manifest.scm: New file.
</span></span></td><td>Jan (janneke) Nieuwenhuizen</td></tr>