Remove/patch metadata timestamps for reproducibility.

diff -ur fpcbuild-3.0.0.old/fpcsrc/packages/fpmkunit/src/fpmkunit.pp fpcbuild-3.0.0/fpcsrc/packages/fpmkunit/src/fpmkunit.pp
--- fpcbuild-3.0.0.old/fpcsrc/packages/fpmkunit/src/fpmkunit.pp	2015-11-04 16:17:00.000000000 -0500
+++ fpcbuild-3.0.0/fpcsrc/packages/fpmkunit/src/fpmkunit.pp	2017-01-26 16:25:29.327339282 -0500
@@ -3779,7 +3779,7 @@
       Values[KeyName]:=Name;
       Values[KeyVersion]:=Version;
       // TODO Generate checksum based on PPUs
-      InstalledChecksum:=DateTimeToFileDate(Now);
+      InstalledChecksum:=0;
       Values[KeyChecksum]:=IntToStr(InstalledChecksum);
       Values[KeyCPU]:=CPUToString(ACPU);
       Values[KeyOS]:=OSToString(AOS);
diff -ur fpcbuild-3.0.0.old/fpcsrc/utils/fpcmkcfg/fpcmkcfg.pp fpcbuild-3.0.0/fpcsrc/utils/fpcmkcfg/fpcmkcfg.pp
--- fpcbuild-3.0.0.old/fpcsrc/utils/fpcmkcfg/fpcmkcfg.pp	2013-06-01 18:27:16.000000000 -0400
+++ fpcbuild-3.0.0/fpcsrc/utils/fpcmkcfg/fpcmkcfg.pp	2017-01-26 16:24:22.949044903 -0500
@@ -234,8 +234,8 @@
   TemplateParser.Values['FPCTARGETOS'] := BuildOSTarget;
   TemplateParser.Values['FPCBIN'] := 'fpc';
   TemplateParser.Values['PWD'] := GetCurrentDir;
-  TemplateParser.Values['BUILDDATE'] := DateToStr(Date);
-  TemplateParser.Values['BUILDTIME'] := TimeToStr(Time);
+  TemplateParser.Values['BUILDDATE'] := '';
+  TemplateParser.Values['BUILDTIME'] := '';
 
   TemplateParser.Values['LOCALREPOSITORY'] := GetDefaultLocalRepository;
   TemplateParser.Values['LOCALBASEPATH'] := GetDefaultLocalBasepath;
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<tr><td><span title='2022-12-27 12:38:05 +0400'>2022-12-27</span></td><td><a href='/guix/commit/etc/snippets/tempel/text-mode?id=8f93a1e01a879ae026678dd92c18e2a2a49be540'>snippets: Remove unwanted git-commit-mode invocation.</a><span class='msg-avail'>...</span></td><td>Andrew Tropin</td></tr>
<tr><td><span title='2022-10-22 14:16:13 +0200'>2022-10-22</span></td><td><a href='/guix/commit/etc/snippets/tempel/text-mode?id=85aff4de30686359ffb50845eb0930c0a18dc8ba'>snippets: Harden for review activity.</a><span class='msg-avail'>...</span></td><td>Liliana Marie Prikler</td></tr>
<tr><td><span title='2022-10-06 21:16:46 +0200'>2022-10-06</span></td><td><a href='/guix/commit/etc/snippets/tempel/text-mode?id=5e63e51afee0f674ff2ac961e3103011f53035cd'>snippets: Fix move.</a><span class='msg-avail'>...</span></td><td>Liliana Marie Prikler</td></tr>
<tr><td><span title='2022-10-06 21:16:46 +0200'>2022-10-06</span></td><td><a href='/guix/commit/etc/snippets/tempel/text-mode?id=da281417cc381374345dd404b2f10b4cb07a87d2'>snippets: tempel: Reformat.</a><span class='msg-avail'>...</span></td><td>Liliana Marie Prikler</td></tr>
<tr><td><span title='2022-10-06 21:16:45 +0200'>2022-10-06</span></td><td><a href='/guix/commit/etc/snippets/tempel/text-mode?id=980c34853e1020018df3a0c04753ea46d880e9a7'>snippets: tempel: Fix calls to mapconcat.</a><span class='msg-avail'>...</span></td><td>Liliana Marie Prikler</td></tr>
<tr><td><span title='2022-09-26 23:29:36 +0200'>2022-09-26</span></td><td><a href='/guix/commit/etc/snippets/tempel/text-mode?id=b6274a20e8e99fa6287264289da42ed364fc976c'>etc: Add tempel snippet move.</a><span class='msg-avail'>...</span></td><td>Nicolas Graves</td></tr>
<tr><td><span title='2022-08-30 11:50:14 +0200'>2022-08-30</span></td><td><a href='/guix/commit/etc/snippets/tempel/text-mode?id=c4acaf412064568a546034871a9e0d3888aa7937'>etc: Add tempel snippets.</a><span class='msg-avail'>...</span></td><td>Nicolas Graves</td></tr>