[meld] Add git to flatpak build (#319)

[Kai Willadsen <kaiw src gnome org>]

commit c07d835ed77a8cbc6149dc467da7c8233291ddc1
Author: Kai Willadsen <kai willadsen gmail com>
Date:   Sat Jan 8 11:51:38 2022 +1000

    Add git to flatpak build (#319)
    
    This is taken from the existing Flathub packaging, and just copies
    across the git binary that exists in the SDK runtime. Given that this
    only affects the GNOME nightly flatpak builds, we're not looking to try
    to support any of the less popular version control systems here.

 data/org.gnome.MeldDevel.json | 7 +++++++
 1 file changed, 7 insertions(+)
---
diff --git a/data/org.gnome.MeldDevel.json b/data/org.gnome.MeldDevel.json
index 0f8a88d8..acfdd271 100644
--- a/data/org.gnome.MeldDevel.json
+++ b/data/org.gnome.MeldDevel.json
@@ -60,6 +60,13 @@
       "config-opts": [
         "-Dprofile=Devel"
       ]
+    },
+    {
+      "name": "git",
+      "buildsystem": "simple",
+      "build-commands": [
+        "cp /usr/bin/git ${FLATPAK_DEST}/bin"
+      ]
     }
   ]
 }