Traverse the entities hash's keys in sorted order to ensure reproducibility.

--- libhubbub-0.3.3/build/make-entities.pl
+++ libhubbub-0.3.3/build/make-entities.pl
@@ -86,7 +86,7 @@
 
 my $trie;
 
-foreach my $key (keys %entities) {
+foreach my $key (sort keys %entities) {
    $trie = insert_node($trie, $key, $entities{$key});
 }
 
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<tr><td><span title='2023-03-16 23:03:18 +0100'>2023-03-16</span></td><td><a href='/guix/commit/tests/read-print.scm?id=83128f00e9149f3c1bcd4450eb0ed3620a37149c'>read-print: 'read-with-comments' reads comments within gexps.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2023-03-07 11:39:50 +0100'>2023-03-07</span></td><td><a href='/guix/commit/tests/read-print.scm?id=0a37921d851b94aef6900214098dc5bd62b46e26'>read-print: Correctly handle comments that follow a list head.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2023-01-09 17:40:54 +0100'>2023-01-09</span></td><td><a href='/guix/commit/tests/read-print.scm?id=6c343d0d0f6b8560e9eb594ce1d4f984753a35fb'>read-print: Do not use extended notation when printing '1+', '1-', etc.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2022-09-20 19:24:31 +0200'>2022-09-20</span></td><td><a href='/guix/commit/tests/read-print.scm?id=7a698da0d04d75f1c49f9ae9f358070acab0f781'>read-print: Correctly support multiple same-named newline forms.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2022-09-02 10:49:35 +0200'>2022-09-02</span></td><td><a href='/guix/commit/tests/read-print.scm?id=82968362ead0ed59c64ee8a21fec346c9265a149'>read-print: Define forms for which \n, \t, etc. are not escaped.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2022-09-01 18:31:26 +0200'>2022-09-01</span></td><td><a href='/guix/commit/tests/read-print.scm?id=c3b1cfe76b7038f4030d7d207ffc417fed9a7ead'>read-print: Guess the base to use for integers being printed.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2022-08-10 16:53:58 +0200'>2022-08-10</span></td><td><a href='/guix/commit/tests/read-print.scm?id=ebda12e1d2c64480bb7d5977e580d8b2eabeb503'>read-print: Report missing closing parens instead of looping.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2022-08-08 11:54:25 +0200'>2022-08-08</span></td><td><a href='/guix/commit/tests/read-print.scm?id=6db3b34d7203639ef4286c237a6e536259f92352'>read-print: Add 'case' and 'cond' special forms.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2022-08-08 11:54:24 +0200'>2022-08-08</span></td><td><a href='/guix/commit/tests/read-print.scm?id=445a0d134ce735577d1e22f210c2e5ceafc56762'>read-print: Support printing multi-line comments.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2022-08-08 11:22:32 +0200'>2022-08-08</span></td><td><a href='/guix/commit/tests/read-print.scm?id=90ef692e9b48732ae2e3921ff5d101e186506a85'>read-print: 'canonicalize-comment' leaves top-level comments unchanged.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2022-08-08 11:22:32 +0200'>2022-08-08</span></td><td><a href='/guix/commit/tests/read-print.scm?id=9b00c97de41165beefe3eff936470f8e081ca600'>read-print: Add code to read and write sequences of expressions/blanks.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2022-08-08 11:22:32 +0200'>2022-08-08</span></td><td><a href='/guix/commit/tests/read-print.scm?id=077324a16fd6c7d2307bfa52a9863ca25cfc6a52'>read-print: Recognize page breaks.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2022-08-08 11:22:32 +0200'>2022-08-08</span></td><td><a href='/guix/commit/tests/read-print.scm?id=f687e27e0385c7f9bab8d967293061158fc3f504'>read-print: Read and render vertical space.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2022-08-08 11:22:31 +0200'>2022-08-08</span></td><td><a href='/guix/commit/tests/read-print.scm?id=5817e222faf46f76fbdb66ba8fd6c8cd643aefb5'>style: Move reader and printer to (guix read-print).</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>