[modules / vcs-to-changelog] Wrong filename path if spaces in file name.

[Thierry Bothorel]

Hi,

this is a sample output I get:
2020-05-03 THBO <xxxxxxxxx@xxxxxxxxxxxxxxxx>

COMMIT: 1d02a74a93dfcb7822a0ddb1bb003db18fae4c72
Message sample.

* Modele/Datawarehouse/GesCom/Vente.mdl: Modified.
* Modele/Datawarehouse/Gescom: Modified.
* Modele/Datawarehouse/Gescom: Modified.
* Modele/Gescom1/F: Modified.
* Modele/Gescom1/F: Modified.

whereas the good output is:

2020-05-03 THBO <xxxxxxxxx@xxxxxxxxxxxxxxxx>

COMMIT: 1d02a74a93dfcb7822a0ddb1bb003db18fae4c72
Message sample.

* Modele/Datawarehouse/GesCom/Vente.mdl: Modified.
* Modele/Datawarehouse/Gescom conso/F achat.mdl: Modified.
* Modele/Datawarehouse/Gescom conso/F vente.mdl: Modified.
* Modele/Gescom1/F achat.mdl: Modified.
* Modele/Gescom1/F vente.mdl: Modified.

Commands:

$ vcs-to-changelog.py -d 39fb50150c690f0b25f43d25898706aa59b8903a 
1d02a74a93dfcb7822a0ddb1bb003db18fae4c72
['git', 'log', '--pretty=%H', 
'39fb50150c690f0b25f43d25898706aa59b8903a..1d02a74a93dfcb7822a0ddb1bb003db18fae4c72']
['git', 'show', '--pretty=fuller', '--date=short', '--raw', 
'1d02a74a93dfcb7822a0ddb1bb003db18fae4c72']
['git', 'show', '757136d']
['git', 'show', 'cb8f5ef']
['git', 'show', '88e6cfb']
['git', 'show', '8182c15']
['git', 'show', 'e57c8df']
['git', 'show', '2319127']
['git', 'show', '4726f1b']
['git', 'show', '9bf9c26']
['git', 'show', 'aed57f5']
['git', 'show', 'a7f96f3']

$ git --version
git version 2.16.2.windows.1

$ python --version
Python 3.8.2

latest vcs-to-changelog version.

Regards.