This fixes failures of tests "BaseLine_opt-datetime-format" and
"BaseLine_opt-time-report", which were printing an unexpected trailing '*' on
the last line of output, e.g.:

  @@ -5,4 +5,4 @@
     04/05/13 12:00 PM    04/05/13 01:30 PM       1.50h    Lunch
     04/05/13 11:30 AM    04/05/13 12:00 PM       30.0m    Walk
   --------------------------------------------------
  -                                           
  +                                          *

Reported upstream at
https://groups.google.com/d/msg/ledger-cli/EeJUrUk8YDc/pIR-LOTVEAAJ

diff --git a/src/account.h b/src/account.h
index 1b97463d..f2555593 100644
--- a/src/account.h
+++ b/src/account.h
@@ -187,7 +187,7 @@ public:
 
       datetime_t         earliest_checkin;
       datetime_t         latest_checkout;
-      bool               latest_checkout_cleared;
+      bool               latest_checkout_cleared = false;
 
       std::set<path>     filenames;
       std::set<string>   accounts_referenced;
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<tr><td><span title='2021-05-13 00:32:23 +0200'>2021-05-13</span></td><td><a href='/guix/commit/gnu/packages/webkit.scm?id=121b9354a2e5cb669c577b6a2535882c431a8d44'>gnu: webkitgtk: Update to 2.32.1.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2021-04-27 12:26:17 +0200'>2021-04-27</span></td><td><a href='/guix/commit/gnu/packages/webkit.scm?id=e5c65fb7372e10a2d6531d25f3b7d7c31679a21e'>gnu: webkitgtk: Always use at least 2 make jobs.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2021-03-30 14:11:28 -0400'>2021-03-30</span></td><td><a href='/guix/commit/gnu/packages/webkit.scm?id=3c5e1412e3ef769df8e4826d0aedabaa3aa0d631'>gnu: WebKitGTK: Update to 2.32.0 [fixes CVE-2021-{1788,1844,1871}].</a><span class='msg-avail'>...</span></td><td>Leo Famulari</td></tr>
<tr><td><span title='2021-03-27 19:48:50 -0400'>2021-03-27</span></td><td><a href='/guix/commit/gnu/packages/webkit.scm?id=9dea1618755891526f708aa335b4136c1302d16e'>gnu: Use 'gtk-doc/stable' in native-inputs of selected packages.</a><span class='msg-avail'>...</span></td><td>Mark H Weaver</td></tr>
<tr><td><span title='2021-03-21 22:13:32 +0100'>2021-03-21</span></td><td><a href='/guix/commit/gnu/packages/webkit.scm?id=759e9acd8f09e48ae20d4ee7985274d72331ccad'>gnu: webkitgtk: Update to 2.30.6.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2021-03-14 06:07:10 +0100'>2021-03-14</span></td><td><a href='/guix/commit/gnu/packages/webkit.scm?id=92d0949a268fe8479af5851d5bb3733e207a5c81'>gnu: webkitgtk: Enable WOFF2 support.</a><span class='msg-avail'>...</span></td><td>Léo Le Bouter</td></tr>
<tr><td><span title='2021-03-14 06:04:33 +0100'>2021-03-14</span></td><td><a href='/guix/commit/gnu/packages/webkit.scm?id=37b5e79154529efa9058c5d01c4f7826d532aa05'>gnu: wpewebkit: Update to 2.30.5 [security fixes].</a><span class='msg-avail'>...</span></td><td>Léo Le Bouter</td></tr>
<tr><td><span title='2021-02-16 17:54:07 -0500'>2021-02-16</span></td><td><a href='/guix/commit/gnu/packages/webkit.scm?id=8fc36d82271946bf5e327b0f2feef9f65ce91701'>gnu: WebKitGTK: Update to 2.30.5 [fixes CVE-2020-13558].</a><span class='msg-avail'>...</span></td><td>Leo Famulari</td></tr>
<tr><td><span title='2020-12-15 22:09:30 -0500'>2020-12-15</span></td><td><a href='/guix/commit/gnu/packages/webkit.scm?id=831af1fd4890655e34386bccefbd422fa454fedf'>gnu: webkitgtk: Update to 2.30.4.</a><span class='msg-avail'>...</span></td><td>Mark H Weaver</td></tr>
<tr><td><span title='2020-11-23 05:44:09 +0100'>2020-11-23</span></td><td><a href='/guix/commit/gnu/packages/webkit.scm?id=c22ef8dd060b8fb07b19f07bf1d44f3a2be5af27'>gnu: webkitgtk: Update to 2.30.3.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>