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
@@ -482,6 +482,12 @@
 			(> (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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<tr><td><span title='2020-03-08 23:35:03 +0000'>2020-03-08</span></td><td><a href='/guix/commit/gnu/services/guix.scm?id=d8ab68b92941ca0286697b87a88254023a0b2dc9'>services: guix-data-service: Allow passing extra options.</a><span class='msg-avail'>...</span></td><td>Christopher Baines</td></tr>
<tr><td><span title='2019-09-25 08:35:33 +0100'>2019-09-25</span></td><td><a href='/guix/commit/gnu/services/guix.scm?id=dd2a83270bccb539439b2fc831d0db04e5276f11'>services: Add the Guix Data Service.</a><span class='msg-avail'>...</span></td><td>Christopher Baines</td></tr>
2020-10-23</span></td><td><a href='/guix/commit/gnu/packages/pdf.scm?id=74b31745bfb7a1cc3a8a6f3e2858c1d6339efe25'>gnu: xournalpp: Update to 1.0.19.</a><span class='msg-avail'>...</span></td><td>Nicolas Goaziou</td></tr>
<tr><td><span title='2020-10-20 16:30:15 +0200'>2020-10-20</span></td><td><a href='/guix/commit/gnu/packages/pdf.scm?id=e21e0affd9d31a0e58d4df7c15b2b851be43279b'>gnu: poppler: Always use the same 'cairo-sans-poppler' variant.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2020-10-15 23:51:04 +0200'>2020-10-15</span></td><td><a href='/guix/commit/gnu/packages/pdf.scm?id=2266f16296c4fdf67458bac1e5a96aff5c0bca9b'>gnu: zathura: Update to 0.4.7.</a><span class='msg-avail'>...</span></td><td>Michael Rohleder</td></tr>
<tr><td><span title='2020-09-07 08:49:03 +0200'>2020-09-07</span></td><td><a href='/guix/commit/gnu/packages/pdf.scm?id=226bb93494377054614f0d212c2930aef4ff0cf0'>gnu: xournalpp: Fix path to addr2line binary.</a><span class='msg-avail'>...</span></td><td>Lars-Dominik Braun</td></tr>
<tr><td><span title='2020-08-05 12:39:02 -0400'>2020-08-05</span></td><td><a href='/guix/commit/gnu/packages/pdf.scm?id=09dfb0c46691412e05c3f5348fb3d0d4f425d584'>gnu: stapler: Update to 1.0.0.</a><span class='msg-avail'>...</span></td><td>Kei Kebreau</td></tr>
<tr><td><span title='2020-07-29 15:12:36 +0200'>2020-07-29</span></td><td><a href='/guix/commit/gnu/packages/pdf.scm?id=6fdd40b35f6b7b01a121eb5ee68db82edc3ca7c4'>gnu: paps: Update description.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2020-07-12 23:08:15 +0200'>2020-07-12</span></td><td><a href='/guix/commit/gnu/packages/pdf.scm?id=b0e7b6992f3f845e83cfbca4d700b51dba50b4d5'>gnu: Remove ".git" from "https://github/…/….git".</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2020-05-29 23:36:38 +0200'>2020-05-29</span></td><td><a href='/guix/commit/gnu/packages/pdf.scm?id=fe6d003908fd8278de65761bc550240c520ef9f4'>Merge branch 'master' into staging</a></td><td>Marius Bakke</td></tr>