[gnome-software/i18n-string-fix] Add src/gs-review-histogram.c which contains localizable strings into the POTFILES.in

[Jordi Mas <jmas src gnome org>]

commit eaf78cefad7737f245d7516403cc787e0e6b40e8
Author: Jordi Mas <jmas softcatala org>
Date:   Tue Aug 24 22:22:43 2021 +0200

    Add src/gs-review-histogram.c which contains localizable strings into the POTFILES.in

 po/POTFILES.in | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/po/POTFILES.in b/po/POTFILES.in
index 925125fa1..407b70111 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -71,6 +71,7 @@ src/gs-repo-row.c
 src/gs-repo-row.ui
 src/gs-review-dialog.c
 src/gs-review-dialog.ui
+src/gs-review-histogram.c
 src/gs-review-histogram.ui
 src/gs-review-row.c
 src/gs-review-row.ui