[libhandy] gitattributes: keep symbols file to fix debian build

[Adrien Plazas <aplazas src gnome org>]

commit de1196e549d3101215e66c1b0f60cb06ee088a2b
Author: Arnaud Ferraris <arnaud ferraris collabora com>
Date:   Wed Jun 24 10:51:36 2020 +0200

    gitattributes: keep symbols file to fix debian build
    
    The `libhandy.syms` file is used as a linker version script, and should
    therefore be present in the distributed tarball (the debian build fails
    when it's missing, as the generated symbols aren't properly versioned)

 .gitattributes | 1 -
 1 file changed, 1 deletion(-)
---
diff --git a/.gitattributes b/.gitattributes
index b59118e9..300ee250 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -3,7 +3,6 @@ debian export-ignore
 examples/sm.puri.Handy.Demo.json export-ignore
 glade/rename-id.patch export-ignore
 glade/sm.puri.Handy.Glade.json export-ignore
-libhandy.syms export-ignore
 lint export-ignore
 .dir-locals.el export-ignore
 .editorconfig export-ignore