[chronojump] Improved information on missing msvcr100.dll on windows

[Xavier de Blas <xaviblas src gnome org>]

commit 42deaf4c67e5edd31bac5d6a2241b39092b8b979
Author: Xavier de Blas <xaviblas gmail com>
Date:   Fri Aug 5 19:40:37 2022 +0200

    Improved information on missing msvcr100.dll on windows

 howto_new_version.txt     | 14 ++++++++++++--
 src/chronojumpImporter.cs |  4 ++++
 2 files changed, 16 insertions(+), 2 deletions(-)
---
diff --git a/howto_new_version.txt b/howto_new_version.txt
index fa1d8236c..7b3c3774f 100644
--- a/howto_new_version.txt
+++ b/howto_new_version.txt
@@ -158,8 +158,18 @@ copy chronojump-importer-python3 dir to  ~/informatica/virtualbox_windows_shared
 and there move to win32/deps/bin
 git commit / push
 
-note if an user cannot get version on chronojump-importer execution, try running the python file from the 
commandline and if it fails, maybe it will say that msvcr100.dll is missing, just copy it there
---
+---
+msvcr100.dll problem:
+note if an user cannot get version on chronojump-importer execution, try running the python file from the 
commandline:
+cd C:\Program Files (x86)\Chronojump\bin\chronojump-importer-python3
+chronojump_importer.exe
+- if the dll is missing, it will not show any message on the terminal, and for this reason we don't know it 
on the log, but on the screen will show a dialog: telling that MSVCR100.dll is missing
+Note the dialog says that reinstalling the program (don't know if it's the dll or chronojump) it fixes it. 
But we think Chronojump does not install that dll
+if the dll is not missing, then will say on the terminal:
+usage: chronojump_importer.exe [-h] --source SOURCE, and other params needed as help in more lines
+
+to solve this, just copy msvcr100.dll on that dir. I have it on ~/informatica/virtualbox_windows_shared
+---
 
 2) See: howto_compile.txt
 
diff --git a/src/chronojumpImporter.cs b/src/chronojumpImporter.cs
index fe3bf8c56..bd55df0cb 100644
--- a/src/chronojumpImporter.cs
+++ b/src/chronojumpImporter.cs
@@ -202,6 +202,10 @@ LogB.Information("import H ");
                Result sourceDatabaseVersion = getDatabaseVersionFromFile (temporarySourceFile);
                Result destinationDatabaseVersion = getDatabaseVersionFromFile (destinationFile);
 
+               /* if it fails here and ends on next return
+                  probably is because on windows it lacks the msvcr100.dll
+                  It is documented on howto_new_version.txt
+                  */
 LogB.Information("import I ");
                if (! sourceDatabaseVersion.success)
                        return sourceDatabaseVersion;